hey,

did you try to check the index status, reset and reindex?

php bin/magento indexer:status

to check the status of the indexes

php bin/magento indexer:reset

to reset the index

php bin/magento indexer:reindex

to reindex all

we saw index stuck on some third party extensions and indexer:status will show you more details. This has to be run in ssh under your magento user and "php" may need to have a path to your current php location.

or just ask your host to check this for you