iCloud storage issue

I received a message in photos on my iPad mini that my iCloud storage is full, need to add more storage, there are 4 items not uploaded to iCloud. I deleted multiple items from photos and iCloud storage. My pad and my phone both now show I am only using 34.5GB of my 50GB if I check my iCloud storage in settings, but my pad is still not uploading the 4 items that initially triggered the “out of storage” warning and it is still prompting me to add more storage in the photo app. The devices are on the same WiFi network and I only have one Apple ID. I have powered the iPad off and back on, closed the photos app from background, etc. I do not get the prompt to add more storage in photos on my phone. I have not tried logging out of my iCloud account on the mini and logging back in, as not sure if I would lose anything in that process that hasn’t uploaded to iCloud already. I have read in support that freeing up storage should allow the items that were previously not uploaded to be automatically uploaded to iCloud storage, but not happening for me. Am I missing something here? TIA..