RetroEdit

I did a bisect from dev downloads, but unfortunately 11 builds were missing in the relevant time period, presumably because of merging in 'feature/canvas': [9a4cf28](https://github.com/mgba-emu/mgba/commit/9a4cf2877642fe32dda692270547cd81e4705654) had the bug, [eb7b90e](https://github.com/mgba-emu/mgba/commit/eb7b90e5d9d226fdba025e9594ccfc82f6e43ad4) didn't...

I can reproduce in latest build as of writing (5994-84000ed). It's pretty faint, but it's there.

It's most pronounced in audio channel 2, but present in lesser degrees in audio channel 1 and possibly 3. I can make a video and/or provide further information to aid...

Without further information, there's not really much that can be done here. There are some other potential causes, like toggling fast-forward on, which has the default key bind `Shift+Tab`.

The other issue (#1548) is closed presumably as a duplicate, which is fair enough, but I will note for future context that the overall issue is most operations apply instantly...

I found this issue independently because two of them are ROM hash duplicates instead of hashes of bad dumps: - `kingkong1` (`King Kong - The Official Game of the Movie...

@HTV04 Hi, I was wondering how you got the save types? I'm interested in solving this issue, and I've been able to create my own list of hashes that need...