1.
Catalog backup makes at least 2 images at once, one for file-based DBs, one for EMM DB.
I wonder why you say "in the other copies it is showing only one". I looked attachment, copy 2 become primarycopy somehow. Using multiple copy, copy 1 must be primary copy by default. Furthermore, image of file-based DBs does not exist on media.
I suspect that you or someone expires copy 1 of both and copy 2 of one image.
Check how may jobs run at once, and how many images created after next full backup.
2.
As mentioned above, it seems that there are no images for file-based DBs which aquires most of catalog capacities. Only EMM backup exists.
3.
Schedule for full backup is correct, but I wonder why you don't configure multiple copies for differential incremental backup. Is it what you want?
Please use "bpimagelist -L" instead of "bpimagelist -U" next time.