Unable to click the embedded inspector within specific width range

Sometimes after a long coding session, the inspector becomes unclickable with a specific width range that starts from the right side.

In this screenshot, the highlighted area is not clickable; you have to expand the width of the window to make **ONLY the expanded left side** clickable.

This has been happening for years, but I have consistently forgotten to report this issue. I'm trying to identify the pattern of this behavior and will report back once I have made progress.

No source file, test, or entry point is named. Start by reproducing the embedded inspector's unclickable region at the reported window-width range, then narrow down whether the problem is tied to the inspector or the IntelliJ plugin UI; done means the affected area remains clickable without resizing the window.

Written by the indexing model from the issue text.