Program crash

While I was using rekordbox in performance mode with the controller connected (a compact Pioneer RR) in MIDI mode, the program at some point (after about an hour and a half) froze and crashed. Even while frozen, the tracks kept playing, but I couldn’t control the audio from the controller anymore (if I tried to lower the channel volume fader to minimum, you could still hear it).

I have a Samsung Book 5 as my PC with the minimum and optimal peripherals to run rekordbox correctly (Intel Core i7 Ultra, 16GB RAM), so this crash shouldn’t happen (during the set I didn’t have any other applications open or running in the background).

I also have another problem with stems: after about ten tracks where they work correctly, starting from the eleventh it says I have no more free RAM, even though I don’t have other programs open, so all of it should be available for rekordbox (my PC has 16GB of RAM).