I used to sign my extenstion with the online tool, Acturally I did it last week successfully, but today I found it failed for the same plugin, I don’t change anything, anyone knows why?
I have no experience with signing, but I’m wondering why you need to sign the same (signed?) extension again if you haven’t changed anything?
By the way, extensions cannot be used in the SketchUp Free (web) version, as stated in your forum profile.
I have moved the topic to the correct category, so the right people can respond.
Did you use drag and drop? If so, it seems that it is broken.
But the Browse for the RBZ is reportedly working.