@Makesi said:
stargate sg-1 season 1 episodes 1 and 2 are in the same file
the collection I bought has this problem.
Season 1's first two episodes are in the same file so what happens is all the tags are offset in the following tags.
So file number 2, which is episode 3, has the tag of episode 2 etc.
I tried to double that file and rename the new one as episode 2 but still API doesn't change.
How can I fix this?

It's a typical use case for Episode Groups.
Check the link to see if any of these orders are the same as your purchase.
https://www.themoviedb.org/tv/4629-stargate-sg-1/edit?active_nav_item=episode_groups
If so, use it.
If not, create a new one.

I found one, thanks.