Selling an item in street brawl gives you the downgraded form and bugs out if capped on slots.

[Frosk]

Selling an item that upgrades from another item in street brawl gives you that downgraded form of the item, meaning if you're full on slots you don't get the item you picked AND you lose the item you tried to sell. It also causes the pick an item UI to stay on your screen (without any items displayed) until you click skip.

Match id of the most recent example I have is 59324559, around the 22-23 minute mark (replay won't show me timestamps while the pick an item UI is up) from the point of view of Viscous. I try to pick Mystical Piano and sold my Express Shot, which gave me High Velocity Rounds and left me with no room for Mystical Piano and caused the UI to stay around on my screen. I have had this happen in other matches as well.

 

[Frosk]

I've edited the original post to include a timestamp now that the replay is available.

 

[jamesp1996]

63403094
This happened to me too as Dynamo, I was given the chance to get haunting shot however the sell interface bugged or something when i sold Headhunter I not only did not get haunting shot but my headhunter was reset back to headshot booster.

 

[hoenntrainer34]

People keep reposting this exact same bug, I get this odd feeling they're not focused on fixing it.