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Will not decrypt. This is what is returned...
MakeMKV v1.18.2 win(x64-release) started
Using direct disc access mode
Loaded content hash table, will verify integrity of M2TS files.
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?ypWtQuUdY1OGEg...
Downloading latest HK to C:/Users/jdmyt/.MakeMKV ...
Automatic HK downloading is disabled or failed.
Saved AACS dump file as C:/Users/jdmyt/.MakeMKV/MKB_v82_MARVEL_STUDIOS'_THUNDERBOLTS_–_BLU-RAY_3D_A926.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc

123jerry7 wrote: ↑

Sun Oct 19, 2025 7:15 pm

Automatic HK downloading is disabled or failed.

This is likely your problem… UHD FAQ

MakeMKV v1.18.2 win(x64-release) started
Using direct disc access mode
Loaded content hash table, will verify integrity of M2TS files.
This disc uses newer version of AACS protection. Please let us know about it by visiting http://www.makemkv.com/a/?vhoIMpeU6GWpVY...
Downloading latest HK to C:/Users/jdmyt/.MakeMKV ...
Automatic HK downloading is disabled or failed.
Saved AACS dump file as C:/Users/jdmyt/.MakeMKV/MKB_v82_MARVEL_STUDIOS'_THUNDERBOLTS_–_BLU-RAY_3D_A926.tgz
The volume key is unknown for this disc - video can't be decrypted
Failed to open disc
Still will not decrypt the 3d disk. The previous one (Captain America Brave New World) created an MKV file with no issues. That is why I believe that MKV is not able the disk because of new decryption. I have submitted the dump several days ago. Still not working.

Until MakeMKV is able to download new hashed keys, it will never be able to decrypt that disc.

You need to figure out why you're getting the "Automatic HK downloading is disabled or failed." message.