I was doing normal things with this file – some mixing & rendering, some fade in/out on individual tracks, some deleting and shifting lines. Then I selected the whole file to amplify, and I got this message:
Internal error at WaveClip.cpp line 161.
Please inform the Audacity team at https://forum.audacityteam.org/.
I sent the report.
Then I tried to do a high filter pass to whole file; same error message. I’m about to try to export it to an mp3 – I’m going to be heartbroken if I’ve just lost an afternoon’s work on this podcast episode!
Thank you, Jademan! Your first suggestion worked. Before I saw your response, what I did was exported it as an mp3, then opened that and did my amplify and high filter pass on the mp3 file, which worked. This morning, I tried your first suggestion and it worked, so I now have an uncorrupted file with separated tracks. thank you!