Zoom bug in XY Chart

Hello,

i have an issue with the XY Chart when enabling the cursor function. Basicly i want to show two lines - one for produced parts and another one for the target. As basedata i have a array of objects with either a {timestimp:value and a partcount:value} or {timestimp:value and a partcountTarget:value}

x axes is a renderd as date, y axes as value with a set minimal value at 0.

I have two series - both ident only in the y axes i seperate them by the partcount and partcountTarget.

When i zoom in the xy chart, the series randomly appear/disappear… has anyone a hint how i could fix that?

Cant upload any images as it seems atm…