[nag] Failed to parse time string after update to 4.2.8

[Volker Then]

Hi,

I get a "Failed to parse time string" when saving a task.

A fatal error has occurred

Failed to parse time string (25/03/2016 15:10)


Changing the date format in the global preferences is a workaround.  
The form accepts manual input of 03/24/2016, but input with the date  
picker only gives "%x".

Do I need to change something in my configuration?

Thanks,

Volker