Hi Kzh0714,
Thank you for participating in the Apple Support Communities. We understand you're having some trouble adding some photos to an album. You'll want to make sure you're following the steps in this article: Use photo albums in Photos on iPad - Apple Support.
"Create a new album
- Swipe from the left edge of the screen or tap
to show the sidebar, then tap New Album below My Albums. - Name the album, then tap Save.
- Tap the photos you want to add to the album, then tap Add.
To create a shared album, see Share photos with Shared Albums in iCloud.
Add a photo or video to an album
- Open the photo or video in full screen, then tap
. - Tap Add to Album, then do either of the following:
- Start a new album: Tap New Album, then give the album a name.
- Add to an existing album: Tap an existing album under My Albums.
Add multiple photos and videos to an album
- When viewing multiple thumbnails, tap Select at the top of the screen.
- Tap the photo and video thumbnails you want to add, then tap
at the bottom of the screen. - Tap Add to Album, then do either of the following:
- Start a new album: Tap New Album, then give the album a name.
- Add to an existing album: Tap an existing album under My Albums.
Remove photos and videos from an album
- Open the album, then tap the photo or video you want to remove to view it in full screen.
- Tap
at the top of the screen, then choose one of the following:
- Remove from Album: The photo is removed from that album, but remains in other albums and your library.
- Delete from Library: The photo is removed from all albums and your library and moves to the Recently Deleted album.
To remove multiple photos or videos from an album, tap Select, tap the photo and video thumbnails you want to remove, then tap
."
If that's not working, try restarting your iPad or updating iPadOS if possible. Here's how if needed: Update your iPhone or iPad - Apple Support.
Take care.