I took popped one of the mosfets on one of my printers. Rather unfortunate grounding incident 😢
Luckily I had another free PWM output so I was able to move over the connector.
I have also seen fans go weird about PWM after a while. 25mm fans I've gotten I've seen fail to start. So much so that I now put B3 to blip the fan for 3 seconds into my config.
Those mosfets are tiny and I was tempted to repair it (have a hot air rework station) but since my board is actually functional in its current state, unless I fry another I'm not going near it 😄