For me and another person, signs from signpack just aren’t showing up. I highly doubt it a coding error because it seems quite unlikely for 2 signpack makers to make the same coding error. And, when the signs were missing, the old ones I hand up didn’t disappear, or show a “error” sign, so I suspect a bug, over a coding error

Have you run your json through a validation? Is there anything in the game log regarding sign load errors?

I have not done any of those, nor do I know how. But this is happening to me and another person so I don’t know.