I would strongly suggest updating at your earliest convenience. There have been some important bug fixes since Audacity 3.0.0.
The current version is 3.0.5: Audacity ® | Downloads
That’s probably a bug. The close command works ok for me.
Can you remind me how to upgrade from a portable installation?
I did install in a different folder and created a folder called “Portable Settings”. That seems to work for a new installation but how do I move all my settings? The Macros I can copy but what about the preferences? I didn’t see that explanation in the manual.
Preference Settings are in “audacity.cfg”. If you are using a “Portable Settings” folder, “audacity.cfg” should be in there.
Documentation is here: Preferences - Audacity Manual (If you are viewing the manual on a computer, there’s a link to “Preferences” in the “Navigation” list in the left hand column).