I've had this puzzle on my phone for years. Every few months I'd glance at it and try and solve it. Last night, as I was eating dinner, I finally figured out the answer!

https://sh.itjust.works/post/55641581

12
Plz fix spoiler tags

Looks like this for me?

It didn’t help but I appreciate you trying. I think this is the moment I realize Sync is so wildly unsupported that it can’t read spoiler tags. Sigh. That’s on me.
Ah, dang sorry for ruining it for you.