Yeah, it only seems to be the ones from the past few months, and the odd one does open ok. I can convert them to .jpg using an online convertor though, which isn't ideal but works ok. They do open on my MacBook though. Love your work btw!

Some of us rely on selling on our old technology in order to upgrade to the newest and shiniest, so keeping our devices in good condition is kind of important. This is not mutually exclusive to making full use of a device.