I am also having the same problem with Entertainment One (EOne) DVDs.
Using version 1.18.1 of MakeMKV and a windows 11 laptop. (tried previous versions of MakeMKV as mentioned but they do not work either).
MKV Detects the DVD but fails to open - The DVD can be played with VLC:
MakeMKV v1.18.1 win(x64-release) started
Using direct disc access mode
Calculated BUP offset for VTS #0 does not match one in IFO header.
IFO file for VTS #0 is corrupt, VOB file must be scanned. This may take very long time, please be patient.
Failed to open disc
Disc Information
Label: MOST_WANTED_MAN
Timestamp: 2014-12-01 13:11:23
Protection: CSS/CPPM
Data capacity: 7.26 Gb
Disc type: DVD-ROM
Disc size: 120mm
Maximum read rate: 10.08 Mbps [1x]
Number of layers: 2 (OTP)
Thank you