You will need to change the sub names and add an underscore in the name. This will prevent the obfuscator from renaming those subs. Note that this is related to a bug in v2.00. V2.02 will be released next week and will fix this issue.
Yesterday I've got the same issue using Threading library.
I solved by changing sub name and adding an underscore in the name. It takes me many hours to reach the solution, so if you use that useful library be careful with obfuscation code.