Platform, device version and operating system
PC Windows 10
Screenshot or image
What you were expecting to happen, and what actually happened
After i won a battle in PvP and Guildwars this errormessage shown up.
How often does this happen? When did it begin happening?
I tried 2 guildwarbattle and became this error and tried it in PvP and got same error after each battle.
Steps to make it happen again
Just start a match as usual.
Looks like Cliffy is confirmed as the next troop named after ingame error/bug.
Please @Sirrian, this time it needs to be an humanoid (bug)insect. 
In the known issues thread they say:
"Status
PVP Battles will still record as Wins and earn rewards,"
This is wrong for GW-battles. It is a loss. 3 matches today i won, but because of this error it counts as loss.
Every one I’ve ever checked counts as a loss. I checked this one and a few others.
@Anna1 Thank you for your report, I’m sorry you ran into this issue 
Due to the way Guild Wars is structured battles will count as losses for any connection or performance issue that occurs, including this specific known issue. PVP Battles specifically should not count as losses if the battle has been won. The game team are looking this issue as we speak, I’ve sent you some compensation to your in-game mail
Thank you Cyrup. Hopefully it will be fixed soon. 
Today no Error.
