I am now haveing trouble with hash clash wu tittled starpooint_4283901_1_0 and also 4283907,4283904. downloading and uploading wu is the problem the work units are done, but waiting to go back.

i believe the project is running with limited server capacity

if it's just trouble up/down-loading then it's nothing to do with the units, it's a connection problem

perfection is not garunteed from projects, nor is high availability, that's why you're able to crunch for multiple projects. If the HashClash server is down, it's their loss, just crunch for another project in the mean time, it's no big deal