To my frustration, I seem to be having an issue where the game will not show damage numbers on a block, even if it's just a percentage block, and irregardless of whether or not I set hide pop-ups to true or false. Actor health still goes down, but no damage numbers show. I've been testing by having a 100% block rate 20% damage blocked shield in play and letting enemies hit for a while.
Edit: with some more troubleshooting I've got guard displaying after temporarily disabling the parry plugin. For some reason despite having a very obvious animation attached to it, parry was triggering with priority over a 100% block rate. I'm still puzzling out an odd interaction with Olivia's Battle Impact plugin where the Guard impact effect seems to butt heads with the Block animation and it seems to coin flip which plays--and if Guard impact plays, it won't display damage numbers. Hmm.