At the Walmart self checkout, scanning items and putting them in the bags. I noticed that one item scanned, got the normal beep that it scanned correctly, put

At the Walmart self checkout, scanning items and putting them in the bags. I noticed that one item scanned, got the normal beep that it scanned correctly, put it in the bag,the bagging area weight check passed, but there was a message in small text where the item description appears, that said "System busy". Next item scanned ok, etc but the previous item didn't appear on the item list. I had to take it out of the bag to scan a second time. If I hadn't noticed "System busy" and the item missing from the list, it wouldn't have appeared on my receipt, and I could have been charged with shoplifting. Walmart has specifically complained about people shoplifting at the self checkout, but I notice this "scan correctly" followed by "System Busy" message quite frequently. Oh, and I did an item lookup for produce that had to be weighed, found and selected the item, put it on the scale and it came up as 3 cents. Apparently I was supposed to put it on the scale first, then click the picture. I HAVE NEVER RECEIVED TRAINING AS A CASHIER. I would hate to be put on a "shoplifter" ban list due to bad UI on their software.