I’d didn’t really see any issues with non-retrofit yesterday.
Collective Obligation was never getting huge DPS bonuses from Volatile due to the limited damage it could dish out and the fact it was burst fire.
Most primaries and specials (even 900 SMG and Trace rifles) weren’t able to proc the constant volatile without extreme setup since Bungie nerfed the amount of damage for a volatile detonation in Season of the Haunted.
I haven’t tried it with Repulsor brace yesterday, but it was working really well with Golden Tricorn.