If Instagram Reels is not showing all of your photos, it may be because the Reels feature is only able to access the most recent 200 photos in your camera roll.
When you create a Reel, the app will only show the 200 most recent photos in your camera roll, and any older photos will not be accessible.
This is a limitation of the Reels feature, and it is not possible to access older photos when creating a Reel.
How to Fix Instagram Reels not Showing All Photos?
If Instagram Reels is not showing all of your photos, there is no way to fix the issue.
The Reels feature is only able to access the most recent 200 photos in your camera roll, and any older photos will not be accessible.
This is a limitation of the Reels feature, and it is not possible to access older photos when creating a Reel.
If you want to use older photos in your Reel, you can try moving them to a new album in your camera roll and then making sure that this album is the first 200 photos in your camera roll.
This will make the photos accessible to the Reels feature, and you will be able to use them in your Reel.
However, keep in mind that this will only work for the 200 most recent photos in the album, and any older photos will still not be accessible.
If you continue to have trouble with Instagram Reels not showing all of your photos, you can contact Instagram support for further assistance.