No sound in OS when suspending aplay process

[syduki]

I'm using the flac tool + aplay combo to play my lossless audio files, something like following:

flac -cds filename.flac | aplay

I usually suspend this process with ctrl+z when I need to temporarily switch to another sound-enabled application. That worked until recently when I upgraded my OS (Ubuntu 23.10, aplay-1.2.9, was 1.2.8). Now when suspending that process there is no sound at all in any of applications nor system.