No.
OFP layout is irrelevant. The only requirement is for “Detailed nav log” to be checked.
You must provide log from X-Plane and fms file from SimBrief for us to investigate further.
Unfortunately the Radeon Pro that Apple put into their products isn’t quite up to the same level as the PC desktop equivalent (despite the VRAM advantage the Apple version has), and the Navi 10 core itself is now over 4 years old. By one benchmark I saw for the Pro 5700 XT you have puts it about level with a GTX 1660 Super, which would be considered somewhat low end by today’s standards.
M3 Max? Personally I wouldn’t go any less if simming is involved.
May I suggest, for the developers to confirm your theory and assist, that you should post evidence, e.g. screenshots or videos, of the issue and any troubleshooting data. Thanks.
Please provide the developers a screenshot where the text is readable. And also a description of what exact data entry you’re attempting, again with readable screenshots of the CDU. Thanks.
Right now it looks like a recent version of the simulator introduced the issue and Laminar Research are figuring out what happened. Hopefully we’ll see a bug fix soon.