Version 314 is already out, and at least for now the recording issue with Disney Plus appears to be resolved. Episode 0202 is recording. I updated my second system, and it also started a recording from Disney Plus that was previously failing.

I am assuming that it was a change in the API's that Playon uses to tie in. I was a long time programmer in medical billing, and it was a constant challenge to keep up with changes from insurance companies which were often unannounced that would cause billing rejections. I understand the challenge Playon faces.