Cannot send block reference with non-registered memfd ID

Hi fellow open source supporters,

when playing back audio from any source (local files, browser, etc.) using PulseEffects processing PulseAudio streams, the journal is flooded every second with the messages below. In terms of functionality, there seems to be no issue, everything is working flawlessly. When PulseEffects is stopped, the messages stop as well. Changing the Pulseaudio log level does not make any difference.

Only thread about this I could find is this: https://github.com/wwmm/pulseeffects/issues/337 Any advice is highly appreciated.

Thanks in advance and thanks for what you do!
Cheers

pulseaudio[1317]: E: [pulseaudio] pstream.c: Cannot send block reference with non-registered memfd ID = 2416926395
pulseaudio[1317]: E: [pulseaudio] pstream.c: Fallig back to copying full block data over socket

System:
Arch Linux with Gnome
Kernel 5.5.8-arch1-1
Focusrite Scarlet 6i6 USB audio interface