I recently migrated my photo catalogue from Lightroom Classic to Lightroom CC. However, there are 40 photos which are still synching after nearly 3 weeks. I have tried to fix this but nothing seems to work. The proposed solution of pressing Option key and Cloud sign on top right hand corner does not work - it does not show any photos that are not synching. Same with the filter option - no photos are shown as problematic. Is there an alternative way to resolve this problem?