I haven’t read all through the thread sorry
!
Out of the ordinary soaking and given your humidity is high ... suggests one of two things .
Either it’s got mites or it’s far too warm in there ..
I’d get it out and wipe it up and down with some white kitchen roll /paper .
Any mites will show as tiny black specks .
Try crushing them on the paper with your fingernail or the back of a teaspoon .. if it’s mites there will be tiny specks of blood ...
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