Xbox content manager, no longer can delete

I noticed my storage was nearly full so went to remove some world updates and when I select them delete no longer appears.

I’ve now had to delete the sim as it’s using most of my storage.

Any ideas why as on an Xbox-s with only 512gb storage the sim is now too big?

Yes, there is a problem: You have to expand your memory!
For speed purposes I recommend a

FS2020 needs to download the compressed update-files, store them and then unpack the content and store it. And then the updates are installed. Now the temporary files are deleted.
But this procedure uses a lot of storage capacity.

I can’t workout why the delete option is no longer available