Strange behaviour of UPS module when the total weight is big

[andreym]

I faced a strange problem with the standard UPS module. When the total weight of products in the shopping cart is under 100 pounds it works perfectly. Here is what I get:

UPS Ground ($23.16)
UPS 3 Day Select ($58.69) / 3 Guaranteed Day(s) To Delivery
UPS 2nd Day Air ($74.53) / 2 Guaranteed Day(s) To Delivery
UPS Next Day Air ($160.45) / 1 Guaranteed Day(s) To Delivery

But after I add a few products and the total weight exceeds 100 pounds I get these options:

UPS Ground ($0.00)  / USD81.81 Guaranteed Day(s) To Delivery
UPS 3 Day Select ($0.00) / USD129.34 Guaranteed Day(s) To Delivery (ETA: 3)
UPS 2nd Day Air ($0.00) / USD155.39 Guaranteed Day(s) To Delivery (ETA: 2)
UPS Next Day Air ($0.00) / USD360.35 Guaranteed Day(s) To Delivery (ETA: 1)

This looks like a bug because the values in brackets equal 0 while costs are displayed right before the number of guaranteed delivery days. Why is that?

I'd appreciate any advice.
Thanks

[dgonzales]

I'm having the same problem.  Have you had any success?

[taylor09]

I noticed this today also, when the weights exceed UPS's maximum weights it just doesn't return a value...hence the zero..frustrating