MakeMDL-new error I never got before...

Got some strange error when compiling model using makemdl on .x file.
What is more strange that this error pops up at the end of compiling process and not at the begining as all the rest famous makemdl errors.
And I did tons of compiles on this model before and havent make any serious changes(maybe moved or renamed some parts).
Here is the part of log,where error is mentioned:
...error A2054: forced error : value not equal to 0 : 65536
ERRS16(1): Macro Called From
IFMSK(7): Macro Called From
...
Error!
Aircraft design gurus,any idea?
What is more strange that this error pops up at the end of compiling process and not at the begining as all the rest famous makemdl errors.
And I did tons of compiles on this model before and havent make any serious changes(maybe moved or renamed some parts).
Here is the part of log,where error is mentioned:
...error A2054: forced error : value not equal to 0 : 65536
ERRS16(1): Macro Called From
IFMSK(7): Macro Called From
...
Error!
Aircraft design gurus,any idea?