what about your alerts folder. you have overallocated space.
See nas in help file...Perhaps the reason nothing is moving is because I have just found that BI does not like UNC Paths? I have tried recording directly to a UNC Path \\UNRAIDSERVER2\blueiris\new and although Windows is happy to view it and write to it BI does not seem to like it? I have tried mapping the path but BI does not show mapped drive letters?