First rule of smartthings: it’s never just you. 
But that’s a smartthings message, you’ll only find discussion of it in this forum. Where there are several threads. I just didn’t previously point you to any of them because it’s an area where there have been a number of platform changes over the last year so a lot of the posts would be out of date and probably confusing. Particularly some of the ones referring to bugs which have since been fixed.