It's not a known problem but the intellij plugin is just a prototype. We'll set aside some time this week to look into it/see if we can reproduce the problem. You're more than welcome to send a PR if you figure it out in the meantime!
The version in Github is a bit newer then the one in the Intellij repository. I've updated it, but don't have the credentials to upload. So could be that your errors are gone by using a custom build.
thanks a lot! Unfortunately I really don't know how to build IntelliJ plugins, so if you ever happen to update the plugin on IntelliJs Plugin Database, please let me know