Repeat and other functions getting hung up

I’ve been working in Audacity 3.4.2 for more than an hour with everything going smoothly. Now, the Repeat function keeps getting hung up. It takes a very long time to complete the command and at least once I cancelled the command because it took so long. Restarted PC but still having the same problem. Now joining clips is taking a long time.

If you mix-and-render the section you intend to repeat, that may speed up the subsequent repetition process.

Visibly this may seem a pointless exercise, but mix-and-render can delete a huge amount of hidden data required by “non-destructive editing” introduced in Audacity3.

Repeat used to take only moments, even earlier today. Now something is wrong. Everything is going slow now. I’m wondering if I should uninstall and reinstall. Will all my previous recordings be safe if I do?

The time taken will depend on the audio you’re repeating.
If the section of audio you select to repeat is, say, 1 minute from an hour long track,
the hour’s worth of audio baggage will also be repeated to enable “non-destructive editing”.
That baggage is going to slow things down.

If you mix-and-render the 1 minute selection, that gets rid of the hidden baggage, and repetition (and other processing) will be faster as a consequence, at the cost of losing “non-destructive editing”, on the repeated audio .

I’m repeating a couple of seconds of silence to extend the period of silence between statements. The track is about 10 minutes long. But now the issue is not just Repeat. Everything is slow. Any ideas on uninstall/reinstall?

If the seconds of “silence” is part of a longer track,
you are processing the whole of that track when you repeat it.
[This is the inevitable downside of “non-destructive editing”].

I use Audacity 2.3.2. …

it does not have “non-destructive editing” so does not get bogged-down.

NB: Audacity projects are not backwards-compatible:
Projects made with Audacity3 cannot be opened in Audacity2,
(the converse is possible),

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