Okay, I did some investigating and foun out that the Beyond Devinity directory is somehow labelled "read only". I assume this is what is resposible for my saving troubles. However it seems to be impossible to make it un-"read only".
I can toggle the "read only" switch just fine, (it says to choose whether to make just that director writable or all the underlying ones as well. I coose all of them naturally) but if I select the same menu again, it is back to being "read only". Can anyone help me making the "writability" stick?