Build 1.0.1n-FULL [M]
Android.
This was likely caused by a series of events. I often play Balatro while commuting, and often have to close the game. On this occasion, I closed it during a tarot pack opening, which caused the game to resume next time I opened it with tarot cards and deck hand overlaid over the normal shop UI, instead of the usual separate pack opening background. Closing and opening game did not fix this.
Unfortunately I have seen this before (no photo sadly), and during this particular separate bug, all cards (the offered tarot and deck cards) are selectable as usual, but only tarots that are always usable (hermit, fool, etc) are actually useable. At this stage of this bug, neither returning to main menu and resuming , opening and closing the game, or opening and closing other UI elements fixes this issue.
On this occasion only contextual card tarots were available, so I had to hit the skip button. This returns the shop screen works to normal.
I then opened a second tarot pack, which worked as normal. Upon leaving the second pack opening however, the UI had disappeared and soft locked the run.
Neither returning to main menu and resuming , opening and closing the game, or opening and closing other UI elements fixed this.
I can provide a copy of this broken save if requested (and told how to do so!)