Emulator

Game Name?

Game Boy Interface (https://www.gc-forever.com/wiki/index.php?title=Game_Boy_Interface)

Game ID? (right click the game in the game list, Properties, Info tab)

N/A

MD5 Hash? (right click the game in the game list, Properties, Verify tab, Verify Integrity button)

N/A

What's the problem? Describe what went wrong.

If you fall back mtfsfx, the following panic alert will appear:

"Don't try unlocking a register that isn't in the cache. Reg -1"

What steps will reproduce the problem?

N/A

Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.

Yes, 2603-399

Is the issue present in the latest release? For future reference, please also write down the version number of the latest release.

Untested

If the issue isn't present in the latest release, which is the first broken version? (You can find the first broken version by bisecting. Windows users can use the tool https://forums.dolphin-emu.org/Thread-green-notice-development-thread-unofficial-dolphin-bisection-tool-for-finding-broken-builds and anyone who is building Dolphin on their own can use git bisect.)

N/A

If your issue is a graphical issue, please attach screenshots and record a three frame fifolog of the issue if possible. Screenshots showing what it is supposed to look like from either console or older builds of Dolphin will help too. For more information on how to use the fifoplayer, please check here: https://wiki.dolphin-emu.org/index.php?title=FifoPlayer

N/A

What are your PC specifications? (CPU, GPU, Operating System, more)

MacBook Pro (16-inch, 2021)
Apple M1 Pro
macOS Tahoe 26.5

Is there anything else that can help developers narrow down the issue? (e.g. logs, screenshots,
configuration files, savefiles, savestates)

N/A