Form 1116 Schedule B Missing

For the 2nd year in a row, I've tried to file an amended return and gotten the message: "We can't e-file your return because we are unable to locate the attachment at/attachment/ Form 1116 Schedule B.pdf. Please go back and re-attach it, Then try again."

Got this numerous time for 2021 return, but amended return finally accepted after 6 months of regular attempts.  Glitch finally fixed for 2021, but reappearing for 2022??  Form 116/ Schedule B is part of my TT file.

Help. What gives?