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Steps to reproduce: - load UML model, instantiate UML package - import test1.xml file into the created extent - restart ide (or force the repository to save all data in another way) - export content of UML extent -> DebugException with message "Object type not recognized: 54" is thrown Note: test1.xml file is already attached to issue 20509
Created attachment 5032 [details] stack trace
Created attachment 5033 [details] stack trace 2 (IOException)
Fixed in main trunk.