I wrote plugins for most IDEs including JetBrains. If you hold the EDT they block your plugin. There's no way a core plugin allows that. I'm guessing this is some other bug, did you file an issue with your logs?
I read through the logs and they didn't show anything very helpful. Every time I ran profiling tools on it, it never occurred so I haven't created a ticket yet ... :)
Did you ask in their developer slack group?
They are VERY responsive.