I'm not sure why but I'm not able to reproduce anymore, even though I could before. Can you post a bug report zip when you have it reproducing?

It occurred instantly for me, but sure. Should be pretty easy to reproduce if it occurs instantly again.

Here's a bug report zip. This particular log is midway through the intro. It also reproduces basically anywhere I tested; at the very start of the Rareware logo, the bug occurred.

dkc-frame-advance-stutter.zip

Wow, there's like...nothing in this config. I was trying to figure out stuff about your config but you either deleted all of it or this is an exceedingly fresh installation.

@endrift Note Portable: Yes inside of System info.

I don't copy over config when I download a fresh mGBA; I generally re-configure it from scratch if necessary.

Generally, I try to treat testing like a controlled experiment, where I remove as many confounding variables as I can. This also reduces the chance that it's a user error on my part, but I do occasionally make them nonetheless.

I wasn't sure. The info I was specifically looking for wasn't present in the config so I couldn't tell if it was stripped down or just the default.

Yep, just letting you know for the future. I think I am unlikely to get lazier with testing over time.