Lightroom online not showing images syncing from Lightroom classic

I’m having a few problems with synchronize picutres from lightroom classic to lightroom online.

When I make a collection of the pictures I want in the cloud (and I check the box with sync to lightroom). I also can’t see the album in lightroom online (name of the collection in lightroom classic)

Sometimes some images do show up in lightroom online (3 or 4 photos of a larger collection).

extra info:

My catalog contains 9660 images in total.

It says I already have 10,025 images synced, but there is nothing in my lightroom online... I can't delete that either. (I only have some documents in the adobe cloud)