Cannot remove broken Facebook verification

My Facebook verification is broken, leading to error when people verify my identity. It is not listed anywhere but in the verification errors, how can I remove it?

Start by reproducing the broken Facebook verification and inspect how verification errors expose or retain entries that are not listed elsewhere. Trace the relevant client entry points and determine how removal is intended to work. Done means the broken verification can be removed and identity verification no longer reports the error.

Written by the indexing model from the issue text.