"Cannot serialise ttype=function"

This is a problem with Pyanodons Post Processing; any mods using stdlib's Data:copy function won't work with PyPost Processing, and they don't appear to be willing to figure out why.

For this specific mod, I might be able to remove the 3 instances of the Data:copy function, since 2 of them might not be necessary anymore, and for the 3rd, I might be able to use the standard deepcopy function, but they should really just look into fixing that issue, since PyPost Processing is the only mod I have found that causes an error like this.