The Update from Bilingual Review feature fails if the timestamps have been stripped from the tracked changes. The workaround involves comparing the original bilingual export to the revised files, generating an intact set of tracked changes. This is cumbersome.
It would be good to have the ability to disable the check for a timestamp for files that have been anonymized by a reviewer. As people become more conscious of privacy and start stripping out personal data on purpose or organizations create policies and use tools or default settings to do so, the bilingual import may fail more often