Well I need a full log & not a single sniplet. Beside that did you enable the addon? Since it works on all other platforms flawless its the usual RPi4 b$&%/%&t/shenanigans & since I do not own I'm digging in the deep especially since it worked in the past on RPi4 too.
Happy to supply logs, which ones? Just the retoarch.log or additional ones? I looked for logging from your addon but couldn't find any. Where does the addon log to?