The problem with the verification system, as noted previously by Khrut27Gg, is definitely with $1,000.00 even money orders. I just tested it. Thanks to Tall Pine for catching that post in my thread, and figuring out a quick fix for it, and to Khrut27Gg for bringing it to our attention. I read Khrut27Gg's comment it when they posted it but it didn't sink in.
I often pick up my mail well after the post office is closed. The phone verification error made it impossible to verify $1K money orders without having to go back to the post office another day. I gave up trying to cash them at the post office as they rarely have enough money on hand, so no need for smaller amounts for that reason, but if it is truly just the $1K even amount that is the problem child, this will be a fix that will make things a lot easier for me. Thanks everyone!