After a perfect raft the first layer messes up

[Scrapenbaker]

Bildschirmfoto 2016-12-21 um 13.19.23.jpgBildschirmfoto 2016-12-21 um 13.19.32.jpgBildschirmfoto 2016-12-21 um 13.19.42.jpgBildschirmfoto 2016-12-21 um 13.19.59.jpg

I just used a new roll of ABS and the same settings and the effect almost didn't happen.
Can moisture cause that effect?
Thanks