I think I need some help with this. One of my instances of Home Assistant has suddenly stopped displaying anything with a vertical-stack. I think it happened after the 2025.2.5 core update. I should add that I access it with the zerotier addon. I have a feeling that it worked locally although I can’t test that theory for a couple of weeks. My other instance of Home Assistant seems ok.
When I look at the raw configuration editor I can see the missing cards but they wont display.
iOS refuses to even load HA at all.
When adding a card to lovelace vertical-stack is missing from the templates
Adding a vertical-stack via yaml spits the error illegal character U+001F.
How can I trouble shoot this? the logs show nothing. has anyone any ideas
