3.4.2 (a "hotfix release") launched yesterday, and claims to have made the following fixes:
#5568 Fix a crash when opening projects with zero-length clips.
#5032 When exporting a file, the sample rate of the tracks is now considered, and last-used sample rate is remembered.
#5555 Copy-pasting behavior now pastes into clips again by default. This can be changed via Preferences -> Track Behavior -> Always paste audio as new clips.
#5549 Mix and render now also resets the gain for the resulting track.
#5571 Fix clips shifting to the right when effects are applied to them.
#5106 Fix clicks occurring when overdubbing a project with muted tracks.
#5533 Fix files being exported without a file extension in rare cases.
#5539 Show all sample rates possible for MP2 exports.
#5518 Fix pasting into labels.
#5543 Fix a crash when clearing loops.
#5529 Fix copying when "select all audio if selection required" is enabled.
#5598 #5552 Fix GTK detection and compilation for wxWidgets 3.2.4.
#5551 Fix Nyquist-related crashes.
#5604 Fix EQs in macros.
#5511 Fix a crash when closing Audacity.
#5476 Fix builds on arm64/armhf.
#5631 Use dladdr when possible to setup modules paths
For more information, see
https://support.audacityteam.org/additional-resources/changelog/audacity-3.4.2
I haven't downloaded it yet, but probably will sometime this week. 3.4.1 seems to be behaving for me so far.
Cheers,