[xtin]

Yes I did it for the project and and also checked that I did so for every resource as well. So that is not the problem. It also behaves very inconsistently - sometime I can add weekends when I use the date selector, but never when I just type it in. Also the date magically becomes tuesday quite often when I try to put it to sunday. I just tried a new document, where I changed the Work Day before adding anything else and it seems to work without a problem. So maybe it's a bug?