If you ever @stats and see a crazy 3.42394829347293487293872-eu amount of UE. This is not a bug. This is science.
In fact, it's because you have a very very very small amount of UE, something close to zero, with lots of decimal places of precision.
We could just show you 0.0 but then someone would complain about missing .0005ue and that would be sad. If you see people talking about having a weird UE issue like this-- please inform them. We get a lot of bug submissions about this.