I didn't say it was a high priority bug. But if it indicates a more general problem (and since I don't know the cause of the bug I don't know whether it does) then maybe Doug will be more interested in fixing it.
Edit: So the problem is (in this situation) that, when gaining the Inn, you can not react with Watchtower, or you can react, but the the reaction is applied to the BV and not to the Inn?
The problem is that reacting to the BV with Watchtower after shuffling for the Inn actually works, pulling the BV out of the shuffled deck and putting it on top. Even if I'm allowed to react with Watchtower here (which is technically correct), the effect should fizzle rather than actually digging through the deck to find the BV.
To answer your question more directly, I am able to react with Watchtower to BV or Inn or both, and I have some slightly-incorrectly limited choices of which order to react to them in, but not in a way that matters much. I'm not bug-reporting any limitations of when I'm allowed to reveal Watchtower; I'm bug-reporting the phenomenon of deck-diving for a shuffled card.
You mean WT with Royal Seal, or?
isotropic has a limitation where I'm only allowed to reveal Watchtower at most once for each card. Technically in a FtF game I could reveal it once, top-deck the card, then reveal it again to trash the card, but I can't do that on isotropic. So I can't test the idea of using Watchtower to top-deck the BV, then gaining an Inn and shuffling that, then using Watchtower again to try to top-deck the BV again. Instead I tested the same idea using Royal Seal to top-deck the BV before gaining the Inn, planning to reveal Watchtower after shuffling, and isotropic correctly does
not let me top-deck the shuffled BV in that case. (Indeed it does not let me reveal Watchtower at all, which is technically incorrect but who cares? since the effect should fizzle anyway.)