Unable to dump 64MB GBA carts

[PsychoFox11]

OSCR firmware version

13.2

OSCR hardware version

HW5 Rev5

Attach OSCR_LOG.txt file here

No response

System used

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Describe the issue.

The GameBoy Advance video carts were recently added to the gba.txt file, and these work great for the 32MB carts. However, the 64MB carts don't seem to be able to be dumped.

In the txt file, 64MB is specified as the size, but it shows size as Unkown, and then prompts you to pick a size, with the limit being 32MB.

I tried the only thing I could think of and edited the ino to give a 64MB option on that menu. I got a 64MB dump but it was just the first 32MB repeated. I'm guessing something needs to switch banks.

Update: Upon further inspection, the 32MB that dumps, while it does contain a proper header and looks good at the top, becomes mostly garbage data later one, repeated patterns like AD DE, FF 01, FF 00, for large chunks of the same pattern. The two halves also do not match 100%, there are scattered different bytes throughout them, but they are mostly the same.

Is this something that could be looked into for the OSCR?