Yea Urbit had a lot of problems. Most of the major ones were technical but it also had some.. I'll say "alignment/impetus" issues and leave it at that. 

We built on Urbit for a while and pivoted to a new stack that we are more involved with core development on. We plan to fix many of the things urbit got wrong (and keep the good stuff!)

I didn't know you were on Urbit. Did we already talk about this? What was your @p? I'm ~sogrum-savluc, I worked at Quartus. You might have used Gora or another of our apps :)