We have our van, a Wyoming, in storage and after 4 months in storage we took it out, February, to go to the show at the NEC in Birmingham, took it home to prepare for the trip and the cupboards, walls were covered in a green mould, the dealer's service department said "We have had a lot of calls about this, its condensation, its not water ingress". "You have to leave a couple of windows open on the latch". Now we have had caravans for 25 years,( 1x Perle,2x Swifts and 2x Bailey) and have never come across this before. Has any one else experienced this???