Thanks Baxers... I agree with your assessment. My mix up was in seeing that the number itself stayed the same (with the exception of the "IMP"), so I mistakenly thought that since the numbers "54923" were the same, the licenses must have been the same.
Which, if I'd just checked my own files, I'd have seen that I had a copy of the "Human Medicinal Products" license updated last February 27, 2025.
So sorry, everyone... my mistake.
Crossing fingers that we're still close.