I am seeing a warning on LR desktop all HEIC files saying HEIC files are not supported without a subscription. However I do have an active subscription, and I am able to edit those files on LR mobile, and on a second PC. I have tried restarting LR, logging out and back in, reinstalling LR and doing a full preferences reset. Also did double/triple check that my account is up to date and I am logged in correctly.
I can view, organise & caption all my images, but I cannot edit them. I can edit jpg files, just not HEIC. This only started a few days ago.
I contacted Adobe support. After about 2 hours they ended by saying "We have never seen this issue before" .
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They said they will get their engineering team to have a look at it, but I have not heard back.