project explorer resizing automatically after clicking stop button

As a general rule I like having my TestComplete UI split between the Project Explorer frame and the Workspace frame. I like the project explorer frame to be about 1/4 of my desktop on the left side on the UI while the Workspace frame occupies the other 3/4. For some reason, upon clicking the stop button when i have completed a recording, the Project Explorer frame automatically expands to take over about 2/3 of my TC UI and I have to grab the frame divider handle and drag it back over to the 1/4 size. This is very annoying. i've searched TC help but can't find anything about how i might stop this from happening.  Anybody else have this issue?