Problem during summer time switch with all date functions

Hello,

During the summertime switch, we faced some issues in MII (12.1.9 Build(116)).

We are receiving the date/time in GMT XML format from our shop floor system.

I noticed when the date/time is between 02:00 and 03:00, all date functions are not working in expression editor (like in assign block).

For example : datefromxmlformat("2014-03-30T02:00:01","yyyyMMdd HHmmss") will return nothing... Even adding the Z to tell it's UTC does not help :

datefromxmlformat("2014-03-30T02:00:01Z","yyyyMMdd HHmmss"), but no success...

Even worst, the expression dateaddminutes("2014-03-30T02:00:01","10") will lead to a conversion exception...

Is there a solution to this ?

Thanks