"Incorrect Decimal Value" when adding products to the create order screen

Want to follow up with further log entries related to the above error (they all occur at the exact same time as the error mentioned above):

Notice: Trying to get property of non-object in uc_order_add_product_form() (line 337 of drupal/sites/all/modules/ubercart/uc_order/uc_order.order_pane.inc).

Notice: Undefined property: stdClass::$sell_price in uc_order_edit_products_add() (line 565 of drupal/sites/all/modules/ubercart/uc_order/uc_order.order_pane.inc).

Notice: Trying to get property of non-object in _uc_attribute_alter_form() (line 1244 of drupal/sites/all/modules/ubercart/uc_attribute/uc_attribute.module).

Notice: Undefined property: stdClass::$nid in _uc_cart_product_get_options() (line 1195 of drupal/sites/all/modules/ubercart/uc_attribute/uc_attribute.module).

Notice: Undefined property: stdClass::$nid in uc_attribute_uc_cart_item() (line 534 of drupal/sites/all/modules/ubercart/uc_attribute/uc_attribute.module).

Notice: Trying to get property of non-object in uc_product_kit_uc_form_alter() (line 76 of drupal/sites/all/modules/ubercart/uc_product_kit/uc_product_kit.module).

On /admin/store/orders/XX/edit:

Clicked on "Add product", then typed 1704 into SKU field and clicked "Select", then clicked "Add to order". It then pops up the error message without adding it to the cart. It now seems as though ALL parts are exhibiting this behavior. So let me recap exactly when this started:

Created new order - User added a new customer and then added two products to order and those were fine. Realized one product was not in catalog yet, so saved the order and went to Content and added the product to the catalog. The user then appeared to double-click save on that screen, thus there were 2 identical products listed (they were nid's 204 and 205). We deleted 204. Went back to add that product to the original order. That is when we saw the problem first.

I have since gone back and deleted the other node 205 and recreated the node from scratch which is now 206. Looking at the database, I don't seem to see any mention of 204 or 205 anywhere. In uc_products it shows nid 206 tied to SKU 1704. Comparing the entire record to other lines seems to look just fine. I have flushed caches, restarted apache, etc. I even updated to the latest dev release of UC3 as well as the latest Drupal (from 7.4 to 7.7) and ran the update script. No go.

It must be something to do with the duplication that occurred. I suppose I can restore the database from a backup and try to re-add the product. We are not in production yet, but man I'd hate for something like this to occur when we are!

OK, ignore previous message. I was wrong. It seems to always happen when I type the SKU into the field and click select, then Add to Order. If I manually pick it from the list, then click select, then add to order, all is well.

I was pretty sure it used to work - entering in the SKU and then clicking select. Perhaps I am mistaken. Anyway, so long as we know what to do and what not to, we should be fine. We do still seem to have a lot of AJAX related issues on that page, such as the province list when we choose Canada for the address. We also will not see any products get added to the order until we add at least one and then click save (or otherwise refresh the page with a save) After that they show up properly. Lastly, when we choose "Credit card" as the payment method, it does not show the fields for credit card and if we click save it complains bitterly, with about a dozen notices related to credit card fields being empty. I believe this is all being hashed out on #1182520: Convert order creation and editing forms to D7 Ajax. And now that I look, it appears you have already committed a patch! I will get to testing!

Thanks!