Yes we are aware of this bug.
it was not being exploited and was not obvious to most players.
i hope this doesn't change that (but it will)
Also remember we have a place for bug reports in the discord.
In the meantime we are adjusting dungeons to help off set this.
actually the bigger bug with that room, (I just looked at it) was the fact the items were set at a 100% drop rate. :)
Fixed that.
Thanks for taking care!