The changed Update value doesn't return to the default value even if it is deleted. The following is an obvious examples.

Firstly, try this codes. The counter works at 10 milliseconds.

[Rainmeter] Update=10

[MeasureCount] Measure=Calc Formula=Counter % 10

[MeterCount] Meter=STRING MeasureName=MeasureCount SolidColor=FFFFFF FontSize=30 AntiAlias=1

Secondarily, delete "Update=10" or add commentout. Then, refresh skin. The Update value doesn't return to the default value (1000), and the counter will keep still working at 10 milliseconds. To return default value, it is necessary to redefine 1000 or completely restart skin.

I don't think this is a serious problem, but this behavior becomes the cause to often confuse a user.

Fixed in r422.