[Soker]

As shown in the following pictures, on the latest firmware releases, if we attempt to change large ares of the maps with < > cursors on the keyboard, a protocol error appears, and a reset of the bard is required in order to reinitiate the com.
This was not happening with the previous firmwares, attempt was done on 3 different genuine arduino mega boards, and 2 different usb cables.
Tests were done after a fresh install with speedyloader of the latest 202202 firmware, with relative ini file, and base tune

[jonbill]

There's been discussion on Slack about similar problems in the last few days. might be an idea to get on there and share your experience.

[Piotr Rogowski]

Try master branch

[Eric H]

I've been seeing this as well.
I did a git bisect and posted the results in slack.
This started back in late August 2020.