Unable to open generated files.

[NChechulin]

Hi! I generated a sample bmf file using the provided code (with newer BookMapRecorder.jar) and got an error:

20250127 16:52:19.511(UTC) ERROR: Failed to open a file 
velox.bookmap.cN: Unknown format. If you think this is a valid file - please contact Bookmap developers.
	at velox.bookmap.ea.a(SourceFile:139)
	at velox.bookmap.ea.a(SourceFile:40)
	at velox.bookmap.ew.a(SourceFile:432)
	at velox.api.layer1.s.a(SourceFile:44)
	at velox.ib.B.a(SourceFile:244)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at velox.ib.J.dispatchEvent(SourceFile:73)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

Is there any way to get more detailed logs (what went wrong)? Thanks.
I have also attached the generated file (320 kb) in case someone wants to look at it.

generated.zip