There’s an issue with the EQ module in which if a filter that’s near another in frequency but lower in gain, if you use the mouse wheel to affect the Q value it will drop the higher gain boost down to the lower gain one and it’s not able to be undone. For example, say I’m doing a wide boost but there’s a frequency that’s poking out in range of that boost that I want to cut. If I find the frequency and then use the mouse wheel to narrow the filter, if it’s close enough to the boost’s nodule it will turn the boost into a cut. If I try to undo the change, it will not work so you’re stuck having to reset the boost manually to where you think it might have been. It’d be one thing if undo fixed it, but the fact that it doesn’t makes it seem like a bug