Been playing Fletcher Since he came out and on a Daily basis i have experienced weird bugs with him just gonna lay them out and hope some of you can give me some feedback on them 
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Sticky’s Disappearing when throw.
It happens quite a few times i throw a sticky it lands on a player and nothing poof it disappears no explosion nothing
also i now have 2 Sticky on reserve so the 3rd just disappeared.
Sticky’s thrown but they weren’t.
Seems to be a Visual bug from his throwing animation i assume, you see him let go of the sticky and its in mid air you click the detonator and nothing happens but you still have 3 of them in reserve.
Sticky’s Do no Damage to people on a Stationary MG.
I have tested this out quite a a bit, I placed 3 sticky’s on Aura in different places while she was busy firing the stationary MG, detonated and she takes no Damage. I have tried this on tons of other Mercs and they seem to take no Damage as well.
Sticky’s Sticking people?
Managed to pull this off a few times but all where random and i have no idea how to reproduce it. I stick a sticky to a Player and detonate it the player gets stuck in place and disappears i don’t get a kill nor any exp.
Sticky & other explosives of other classes
I have seen this with the sticky’s and other classes like Nadder and fragger tons of times, sticky lands near a player i detonate and the player takes no damage i have also seen where Nadder martyrdom’s near a group of enemy’s standing right on top of her and 1 out of the group of 4 Die even though they are right near her this also seemed to work on Fraggers Nade.It seems to have something to do with Explosives that are in the Air.
Well that’s what i got so Far.