Effects not working on 15 minute file

Hi, I was using Audacity 3.0.0 and when I tried to do an ACX check - it went halfway, and the specs were listed as fine, then it reopened the window, and it did it again, finding all the specs at 0.0. I did a loudness normalization effect and it quit halfway through and appears to not have done anything to the actual file. I updated Audacity to 3.0.2 and the problems persisted.

This hasn’t happened before. The main difference? The file is 15 minutes long. But that shouldn’t be too long? I need to get this file ready for submission - it is already 6 hours after it was due, and I am fighting with audacity.

There was a bug in Audacity 3.0.0 that restricts the length that can be processed in one go by Nyquist plug-ins (“ACX Check” is a Nyquist plug-in).
Update to Audacity 3.0.2 for the fix: https://www.audacityteam.org/download/