Does he regen if you just charge your heavy and eat some shots to the face?It would be less damage than blocking anyway...
Current GC in BG`so, he don't regen the damage from blocked basic hits. https://youtube.com/shorts/2Y2Ny9JBIDY?si=iAO1XueA4A3pIbnE
Gentle also doesn't get his pursuit or reinforce passives against Bullseye, there's definitely a weird interaction there with Bullseye that's shutting down other attacker's abilities.
Current GC in BG`so, he don't regen the damage from blocked basic hits. https://youtube.com/shorts/2Y2Ny9JBIDY?si=iAO1XueA4A3pIbnE I'm pretty sure sinister heals off crits. If you don't know, when you parry bullseyes attacks it turns off his crit through block for some unspecified reason, that's why sinister is taking that massive block damage without Regen.
Gentle also doesn't get his pursuit or reinforce passives against Bullseye, there's definitely a weird interaction there with Bullseye that's shutting down other attacker's abilities. As for this case I don't know. Sounds weird as hell, I've never seen gentle get shut down by bullseye but if its screwed you over, you should clip it and get it to support.