Help needed to understand Streaming Services removing original content

[Secondhand]

Originally Posted by kannibaliztik

Every single show and movie has it's own license/contract and those terms will differ depending on what studio or people are involved. None of us really know when/where a title will show up again if removed from a service.

I know no one here knows the specifics of each series and film but I should have made it clear what I meant.

For example, what might be reasons that Disney+ have to pay the makers of WILLOW extra money as time goes on but not THE MANDOLORIAN? Both are LUCASFILM.

Same for STAR TREK - is it because it was made by an outside animation company?