Hello Fabian Schmidberger,
I'm Charles from PTC Technical Support in Europe, I will be assisting you with your question opened for Arsandis.
Can you provide corresponding log files via email to email@example.com?
Please reproduce the use-case with the error message, then send me the MethodServer log and pinpoint the timestamp and the login used.
Hello Charles Gautier,
We also facing similar issue, is there any work around/solution for this issue? If yes, can you please share the related article.
I'm facing the same issue, however to get a user picker you can create an IBA / global attribute or local attribute on the document and follow this article