Hi,
I have a calculated text column called MeasureID that does not sort correctly (see screenshot)

Can someone explain how I can fix this?
For context, the Calculated MeasureID column is using this function:
Concat(at_strategicpillar.at_pillarnumber, ".", at_measurenumber)
aka: it concatenates the pillarnumber from the strategicpillar lookup column + a period + the measure number for the current item.