Sinclair assistant disappearing when placed by a wall on stairs

[xxmetalxx1]

When sinclair places his assistant on an incline near a wall, it will put his assistant on cooldown and the assistant disappears.

Here's a clip with some examples. I know there's no CD enabled, but it will put the assistant on cooldown and the assistant disappears, making it useless.

 

[Fridge]

Happened to me all game too, seems to be the stairs/slanted surfaces in general

39115573

 

[oww]

Valve pls fix