I just updated my MacBook Pro to version 12.3.1 then opened LR Classic (Version: v11.3) but all the photos imported from my external drive could not be found. I even tried to import new photos from external drive still having the same problem. Please help.
Thank you for the replies and infos. Fixed / resolved the problem 🙂 It seems there are changes on the Security and Privacy section of my MacBook Pro after the update. I clicked the following (check images). Back to normal now 🙂 Thanks!