Template images not loading on Desktop Mac, older machine.

Hello @Stellar_Enchantment0D45 it seems Apple stopped support for Mac OS Catalina 10.15 in November 2022. I don't know if you could try another browser e.g. Chrome, but it's likely you will encounter the same problem. Unfortunately, there is nothing that can be done other than the options of upgrading your computer to meet with the program requirements.