here is my log of two jet missions stuck loading at 100% it happens the same other eras but it does not affect WAW. Latest Bat version
2019-09-11 19:07:00:074 (dinput.dll) : JVM Parameters injector activated
2019-09-11 19:07:00:076 (dinput.dll) : Applying JVM Memory Settings from IL-2 Selector...
2019-09-11 19:07:00:076 (dinput.dll) : Added JVM Option: -Xms444M
2019-09-11 19:07:00:076 (dinput.dll) : Added JVM Option: -Xmx444M
2019-09-11 19:07:00:077 (dinput.dll) : Added JVM Option: -Xss4096K
2019-09-11 19:07:00:077 (dinput.dll) : Added JVM Option: -XX:PermSize=64M
2019-09-11 19:07:00:077 (dinput.dll) : Added JVM Option: -XX:MaxPermSize=64M
2019-09-11 19:07:00:078 (dinput.dll) : Checking mandatory JVM Options...
2019-09-11 19:07:00:078 (dinput.dll) : Added JVM Option: -Djava.class.path=.
2019-09-11 19:07:00:079 (dinput.dll) : Added JVM Option: -Xverify:none
2019-09-11 19:07:00:079 (dinput.dll) : Added JVM Option: -Xcomp
2019-09-11 19:07:00:079 (dinput.dll) : IL-2 Process ID = 000007F0
2019-09-11 19:07:00:079 (dinput.dll) : Starting Watchdog at C:\IL-2 Sturmovik 1946BAT - Copia-no missions - Copia\bin\selector\basefiles\IL-2 Watchdog.exe 1
2019-09-11 19:07:00:100 (dinput.dll) : Watchdog process started.
2019-09-11 19:07:00:100 (dinput.dll) : Starting Pipe Logger at C:\IL-2 Sturmovik 1946BAT - Copia-no missions - Copia\bin\selector\basefiles\PipeLogger.exe
2019-09-11 19:07:00:122 (dinput.dll) : PipeLogger process started.
2019-09-11 19:07:00:133 (dinput.dll) : Hooked "SAS_CreateJavaVM" function activated
2019-09-11 19:07:00:133 (dinput.dll) : OpenGL Mode detected, checking IL-2 Graphics Extender Availability...
2019-09-11 19:07:00:134 (dinput.dll) : Trying C:\IL-2 Sturmovik 1946BAT - Copia-no missions - Copia\il2ge.dll
2019-09-11 19:07:00:135 (dinput.dll) : il2ge.dll found, loading library.
2019-09-11 19:07:00:137 (dinput.dll) : IL-2 Graphics Extender loaded successfully, trying to call Init() method...
2019-09-11 19:07:00:137 (dinput.dll) : Init() method found, calling it now.
2019-09-11 19:07:00:147 (dinput.dll) : Injecting JVM Parameters
2019-09-11 19:07:00:157 (PipeLogger) : Starting
2019-09-11 19:07:00:161 (watchdog) : IL-2 Parent Process Handle = 000001B4, ID=000007F0
2019-09-11 19:07:00:162 (watchdog) : IL-2 Watchdog started.
2019-09-11 19:07:00:162 (watchdog) : Splash Screen Mode = 1
2019-09-11 19:07:00:165 (watchdog) : Message Window Created.
2019-09-11 19:07:00:168 (PipeLogger) : PipeLogger Process ID: 00002FD8; Parent (IL-2) Process ID: 000007F0
2019-09-11 19:07:00:171 (PipeLogger) : Listener thread awaiting client connection on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:07:00:184 (dinput.dll) : Java Virtual Machine Initialization with additional parameters successful!
2019-09-11 19:07:00:196 (wrapper) : ProcessAttach, attached Processes = 1
2019-09-11 19:07:00:196 (wrapper) : Calling GetCommandLineParams()
2019-09-11 19:07:00:197 (wrapper) : Command Line Parameter No. 1 = /f:none
2019-09-11 19:07:00:197 (wrapper) : Command Line Parameter No. 2 = /m:#jtw3
2019-09-11 19:07:00:197 (wrapper) : Command Line Parameter No. 3 = /lb:il2fb.exe
2019-09-11 19:07:00:198 (wrapper) : MODS Folder = "#jtw3"
2019-09-11 19:07:00:198 (wrapper) : No FILES Folder set.
2019-09-11 19:07:00:199 (wrapper) : Calling LinkIl2fbExe()
2019-09-11 19:07:00:199 (wrapper) : Trying to link back to C:\IL-2 Sturmovik 1946BAT - Copia-no missions - Copia\il2fb.exe through LoadLibrary()
2019-09-11 19:07:00:200 (wrapper) : Calling CreateModsFolderList()
2019-09-11 19:07:00:270 (watchdog) : Splash Screen Created.
2019-09-11 19:07:00:811 (wrapper) : Scanning #jtw3 folder took 611 milliseconds.
2019-09-11 19:07:00:811 (wrapper) : Total number of modded files = 12299.
2019-09-11 19:07:00:812 (wrapper) : Calling SortList()
2019-09-11 19:07:00:814 (wrapper) : Sorting modded files list took 2.277 milliseconds.
2019-09-11 19:07:00:814 (wrapper) : Calling RemoveDuplicates()
2019-09-11 19:07:00:815 (wrapper) : Removing 149 Duplicates took 0.026 milliseconds.
2019-09-11 19:07:05:436 (wrapper) : ThreadAttach, attached Threads = 1
2019-09-11 19:07:05:441 (wrapper) : ThreadAttach, attached Threads = 2
2019-09-11 19:07:05:732 (PipeLogger) : Client connected, creating a new Listener Thread & new Instance Thread for this Client.
2019-09-11 19:07:05:735 (PipeLogger) : Listener thread awaiting client connection on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:07:05:736 (PipeLogger) : Waiting for Pipe Instance to initialize...
2019-09-11 19:07:05:736 (PipeLogger) : InstanceThread No.1 created, receiving and processing messages on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:07:05:736 (PipeLogger) : Logfile for instance No.1 is c:\il-2 sturmovik 1946bat - copia-no missions - copia\log.lst
2019-09-11 19:07:05:737 (PipeLogger) : Flush Timeout for instance No.1 is 1000 Milliseconds
2019-09-11 19:07:05:740 (PipeLogger) : Log Writer No.1 running
2019-09-11 19:07:05:742 (watchdog) : IL-2 Main Window created: "Il2-Sturmovik Forgotten Battles" (MaddoxRtsWndClassW), Handle= 0x0013080E
2019-09-11 19:07:05:758 (watchdog) : Activating IL-2 Main Window (0x0013080E) using SwitchToThisWindow()
2019-09-11 19:07:05:736 (PipeLogger) : Pipe Instance initialized successfully
2019-09-11 19:07:06:184 (wrapper) : ThreadAttach, attached Threads = 3
2019-09-11 19:07:06:185 (wrapper) : ThreadAttach, attached Threads = 4
2019-09-11 19:07:06:187 (wrapper) : ThreadDetach, attached Threads = 3
2019-09-11 19:07:06:193 (wrapper) : ThreadDetach, attached Threads = 2
2019-09-11 19:07:06:194 (wrapper) : ThreadAttach, attached Threads = 3
2019-09-11 19:07:06:199 (wrapper) : ThreadAttach, attached Threads = 4
2019-09-11 19:07:06:222 (wrapper) : ThreadDetach, attached Threads = 3
2019-09-11 19:07:06:223 (wrapper) : ThreadDetach, attached Threads = 2
2019-09-11 19:07:06:223 (wrapper) : ThreadAttach, attached Threads = 3
2019-09-11 19:07:06:286 (wrapper) : ThreadAttach, attached Threads = 4
2019-09-11 19:07:06:392 (wrapper) : ThreadAttach, attached Threads = 5
2019-09-11 19:07:06:395 (wrapper) : ThreadAttach, attached Threads = 6
2019-09-11 19:07:06:480 (wrapper) : ThreadAttach, attached Threads = 7
2019-09-11 19:07:06:565 (wrapper) : ThreadAttach, attached Threads = 8
2019-09-11 19:07:06:584 (wrapper) : ThreadAttach, attached Threads = 9
2019-09-11 19:07:06:604 (wrapper) : ThreadAttach, attached Threads = 10
2019-09-11 19:07:06:646 (wrapper) : ThreadAttach, attached Threads = 11
2019-09-11 19:07:06:743 (watchdog) : Successfully activated IL-2 Main Window (Handle: 0x0013080E)
2019-09-11 19:07:07:568 (wrapper) : ThreadAttach, attached Threads = 12
2019-09-11 19:07:07:606 (wrapper) : ThreadAttach, attached Threads = 13
2019-09-11 19:07:07:608 (wrapper) : ThreadDetach, attached Threads = 12
2019-09-11 19:07:35:444 (wrapper) : ThreadAttach, attached Threads = 13
2019-09-11 19:07:35:445 (wrapper) : ThreadAttach, attached Threads = 14
2019-09-11 19:07:37:569 (wrapper) : ThreadDetach, attached Threads = 13
2019-09-11 19:08:43:297 (wrapper) : ThreadAttach, attached Threads = 14
2019-09-11 19:09:11:446 (wrapper) : ThreadAttach, attached Threads = 15
2019-09-11 19:09:11:448 (wrapper) : ThreadDetach, attached Threads = 14
2019-09-11 19:10:29:559 (PipeLogger) : Client connected, creating a new Listener Thread & new Instance Thread for this Client.
2019-09-11 19:10:29:561 (PipeLogger) : Listener thread awaiting client connection on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:10:29:562 (PipeLogger) : Waiting for Pipe Instance to initialize...
2019-09-11 19:10:29:562 (PipeLogger) : InstanceThread No.2 created, receiving and processing messages on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:10:29:563 (PipeLogger) : Logfile for instance No.2 is c:\il-2 sturmovik 1946bat - copia-no missions - copia\eventlog.lst
2019-09-11 19:10:29:563 (PipeLogger) : Flush Timeout for instance No.2 is 1000 Milliseconds
2019-09-11 19:10:29:568 (PipeLogger) : Log Writer No.2 running
2019-09-11 19:10:29:563 (PipeLogger) : Pipe Instance initialized successfully
2019-09-11 19:11:33:427 (wrapper) : ThreadAttach, attached Threads = 15
2019-09-11 19:11:33:439 (wrapper) : ThreadDetach, attached Threads = 14
2019-09-11 19:14:15:207 (wrapper) : ThreadAttach, attached Threads = 15
2019-09-11 19:14:15:208 (wrapper) : ThreadDetach, attached Threads = 14
2019-09-11 19:14:15:340 (PipeLogger) : InstanceThread No.2: client disconnected.
2019-09-11 19:14:15:341 (PipeLogger) : InstanceThread No.2 terminating...
2019-09-11 19:14:15:341 (PipeLogger) : Log Writer No.2 terminated
2019-09-11 19:14:15:342 (PipeLogger) : InstanceThread No.2 terminated
2019-09-11 19:15:03:227 (PipeLogger) : Client connected, creating a new Listener Thread & new Instance Thread for this Client.
2019-09-11 19:15:03:232 (PipeLogger) : Listener thread awaiting client connection on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:15:03:237 (PipeLogger) : Waiting for Pipe Instance to initialize...
2019-09-11 19:15:03:237 (PipeLogger) : InstanceThread No.3 created, receiving and processing messages on \\.\pipe\SAS_PIPE_LOGGER
2019-09-11 19:15:03:237 (PipeLogger) : Logfile for instance No.3 is c:\il-2 sturmovik 1946bat - copia-no missions - copia\eventlog.lst
2019-09-11 19:15:03:238 (PipeLogger) : Flush Timeout for instance No.3 is 1000 Milliseconds
2019-09-11 19:15:03:241 (PipeLogger) : Log Writer No.3 running
2019-09-11 19:15:03:237 (PipeLogger) : Pipe Instance initialized successfully