Verify code produces error with 328pb but not with 168pb??

All I can tell you is that with the same configuration I have no error.

Please do this:

  • File > Preferences > Show verbose output during: > compilation (check) > OK
  • Sketch > Verify/Compile
  • After the compilation fails you'll see a button on the right side of the orange bar "Copy error messages". Click that button.
  • Paste the error messages in a reply here.