Bug: no sound effects when using Turbo Mode in a specific situation

I have a Mutated Pulse Bat with Momentum that lowers Speed and a Spitting Pit Worm with Drained that deals damage based on stat loss from enemies.

When I hold E at the immediate beginning of the battle to start Turbo Mode, before Momentum/Drained combo activates, no sound effects are being played. The next time this happens, even if I hold E the entire time, it works with sound effects.