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After the IDE is restarted I get an exception saying that a file can't be delete. The file is all-layers.dat. This happens at version 4.1 also
Created attachment 23088 [details] Message of my exception
Reassigning to CORE for evaluation.
Seems like a consequence of issue 60932. You are using a JRE (you should use JDK). If the problem persists, it is most likely JDK specific (try using other implementation of JDK on OS/2).