one of many T-log restores failing. "Media family is incorrectly formed" Can't skip past it to restore next tlog backup (4240180)

We want to restore our database tlog backups that LiteSpeed had taken. It restores some backups but for one of them, gets an error:

"The media family on device LiteSpeed for SQL Server backup file is incorrectly formed. SQL Server cannot process this media family".

We can't restore that backup. And we can't even seem to skip past that bad backup and move onto restoring the next tlog backup.

For transaction log backup , if LiteSpeed writes log to disk but fails verify on one or more of the trans logs in a link; i.e. break in the chain. If we then restore FULL backup, and attempt to apply trans logs, is it possible to skip a "bad" log?

You cannot skip a tlog backup, even with the full backup first restored. LiteSpeed uses the same rules to restore backups as does SQL server. If it cannot be done with native backups, it cannot be done with LiteSpeed backups.