Snap ends up in prepare stage

Ok thank you, I fully understand this now, and sorry for taking so much to realize.
Since you encountered this problem, you might want to open an issue on github at Sign in to GitHub · GitHub
I’ll also page our top start tech support to check this thread out.
Might be useful if you shared a log of a run where you do use the Tor Settings dialogue to set custom bridges, until you shut down Bisq.