I believe those students had received noticed to use png/jpeg, and their solution was to change the file extensions. The website accepted them without issue, bu

I believe those students had received noticed to use png/jpeg, and their solution was to change the file extensions. The website accepted them without issue, but these students later received emails telling that their photo was corrupt. The other, unaware students tried to upload the HEIC directly from their phones and the website stopped responding causing their test time to expire.