Hello @halaywi,
You have provided us with plenty of information and the whole keyboard package folder as well in the latest discussion here - Can’t Compile kmn so we’re happy to look into the issue further if it persists.
In that case, the issue is now resolved. And due to inactiveness of the discussion, this conversation will be closed in 14 days.
Thank you @drowe and @darcy for the guidance.
Have a wonderful day.