Ponyfan.
My trivial complaint - the tall cupboard has mould in the back again. We had some issues with a leaking roof a while back which has now been fixed. BUT getting the mould permanently out of the cupboard has been so difficult. I am resorting it now to try and improve the ventilation, but it's so annoying.
A few G4 ponies in packaging bore the brunt of it on shelf 4. Most are fine, but one had to be decarded. I have no real emotion over G4 on card, thankfully, so throwing the packaging out was not a big deal - but it makes me worry a little bit about my G1s in the other cupboard...
Fortunately the most valuable (to me) thing on that shelf, Wedding Bells Confetti's box, is unharmed.
Anyhow, one pony got unexpectedly decarded as she's fine but her package was toast. Another one needs to be decarded but it's a pony I already have loose so I'm not really sure what to do with her. The others wiped down fine, thankfully.
It's not a massive mould infestation, just a line of it along the back wall where the water seeped in and we didn't manage to spot it. But it's annoying and unpleasant.