Opening AUP3 file crashes Audacity

Hi, I’ve noticed a couple of problems with Audacity 3.4.1, one being a minor annoyance and the other being a major issue:

  1. If I click Solo on a track and then click Solo on another track (to switch between them), the initial Solo (or Solos if I click a third etc.) remains selected and I have to deselect them manually.

  2. I cannot open any .aup3 files created from July onwards. The Audacity app crashes with a Problem Report. I can’t send the report, so I’ve copied and pasted it into the attached .txt file.

As I said, the first problem is minor, but the second is a major issue as I use Audacity for a podcast and I often use audio from previous episodes, which is how I discovered the problem today.

TIA, Robert

AudacityExceptionCode0xc0000005.txt (157.5 KB)