Hello Daniel,
I found your debian/watch file a bit peculiar,
version=4
opts="" \
https://www.makemkv.com/forum/viewtopic.php?t=224 .*/download/makemkv-bin-(\d\S+)\.tar\.gz
looking at the linked forum it seems a new post is made for every release,
so the topic ID above is unlikely to stay the same, no?
It seems to me that rather defeats the purpose of a watch file.
The forum post mentioned in the watch file is edited with new links every release. Next release, they'll edit the forum post replacing the version in the link, and the watch file should pick it up.
Attachment:
OpenPGP_0xC311C5F54E89B698.asc
Description: OpenPGP public key
Attachment:
OpenPGP_signature
Description: OpenPGP digital signature