I don't think this is an issue with your code (even though there are issues with your code). Check your Trade Manager - Messages log for an error message. That may help figure out why the order may have been rejected. 9/10 this happens to me because my strategy tried to place an order during "pre open" (1 second too early for ES). Only way I know to fix this is to run a custom session. Its very rare that I get these issues in liquid markets so I have not ventured to fix this yet. I just watch the open. Or more likely I check charts out after the close and know that I am expecting trades to happen on market open, then I make sure I receive fill notification if I am not monitoring.

Thanks, appreciate the help...even though its a sim obviously just worried that when its live stuff doesnt happen as it should
Also using this as a learning point on how to diagnose problems
So any questions and comments already help a lot, just how to go through the diagnosing.

This is the only place I know to check the reports...these are the "messages" in the trademanager

The green lines are the buys & sells. There was a disconnection but it was 15 minutes earlier, so cant see that it affected it.
Seems the 1 buy order is just missing

It looks like the strategy only sent 1 buy order so it was not a rejected order. You probably don't have issues with rejected orders as often on a SIM account. Was the strategy supposed to send 2 orders here? Did the strategy show 2 orders and SIM account only had 1 buy? I had a similar issue with strategies not sending orders but when I would reload the data all of a sudden the buy order would show up as if it should have triggered.

I found no resolution to this issue. The only thing that solved it was a COMPLETE wipe of my machine and rebuild. I do this fairly regularly now depending on how much development I do on my trading server. I found that most fill related issues, lagging issues, freezing issues are related to the cached info by Tradestation. I could not resolve just be deleting the caches. I could not resolve by uninstalling Tradestation and rebuilding from scratch or a backup. The best answer for increased performance and repair of any issues was a complete wipe of my OS, reinstall tradestation (no backup), then rebuild from importing my studies/strategies, and opening views from backup. I now make it a regular habit to export all easylanguage code and backup views. I can completely rebuild in about 20 minutes (pending windows updates which can take multiple hours...).