Not all items are being passed to PayPal

I am just reconciling my sales for the month and I have noticed on 2 of my sales that used PayPal Express that not all items are passed through to PayPal for processing.

For example, Order #1 has 7 items however PayPal only recorded 6 of them (see the grey box at the top).

Order #2 has 4 items and PayPal only recorded 3 of them.

I checked a few more larger orders and so far, they seem to have worked fine.

Anyone have any thoughts?

Sorry - not meaning to bump but also note that so far, the orders that are in USD are processing just fine but the ones in CAD dollars are the offending orders (although not all of them - it's seems to be really hit and miss).

I cannot repeat this error ...

Did this coincide with any of the updates you may have added?

Do you have the current PayPal Patch for Zen Cart v1.3.7 installed:
http://www.zen-cart.com/forum/showthread.php?t=56216

If not, be sure to follow the steps for this ...

Are you able to reproduce this error on your site with those same products?