Preview and result differ with Filter EQ

Can somebody test this?

I use a sound with both treble and bass, an old gun sound from a playstation game, with this sort of curve, and for some reason the preview sounds differently from result after I click on “apply”.

Any idea?

Using 3.6 on windows.

I can possibly share the source sound, but I would imagine it can be reproduced without this specific sound.

This sounds similar than this problem but I was unable to fix with their suggestion Plugin sounds different when previewed and used in realtime

EDIT: apparently this doesn’t happen in audacity 2.4

EDIT2: I am quite confident this is a bug, somebody else managed to reproduce it. (edited)