Panes open in sidebar haphazardly when not invoked

When doing something in my vault, after a while, a sidebar pane for tags or files opens up (in the background, not foreground). Based on experience, I suspect it has something to do with an operation on (tags/files in this example) done by the plugin or otherwise… has this happened for someone before? If not, what are recommended troubleshooting steps?

In case it’s not clear, I’m talking about the two specific panes on left and right from screenshot.