Using the Android (phone) version on the latest patch.
Sajan is at the Shrine to Lamashtu in Trouble in Sandpoint, and just defeated a Wrathful Sinspawn.
The game rolls the die to see if the top card of the blessings deck is discarded (currently 14 cards remaining), and then stalls out.
It's not frozen, I can still navigate the UI, and if I go to the Vault or exit the app completely, it returns me to just before the die roll, which is repeated and then stalls again.
This did not happen when a Sinspawn was defeated elsewhere during the same adventure.