No worries, but now that you've managed to re-enable LibreDrive, can you provide a discatt.dat file for this disk please? It would still be useful to add this variant of "Tangled" to the public KEYDB.cfg file, and a replacement discatt.dat would "fix" the TGZ dump file that you've already provided
You can create a discatt.dat file by asking MakeMKV to create an encrypted disk back-up into a temporary directory, waiting until the discatt.dat file appears (and it should be one of the first files created), and then copying it to a safe location before aborting the back-up.
Have you also considered using SamuriHL's KEYDB Helper utility?