Unable to click the embedded inspector within specific width range

[AlexV525]

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.