I barely use TT charting. I did just launch a chart of an autospreader synthetic spread though and launched the autospreader and the chart DID NOT show the order on the chart. It clearly does with exchange listed instruments. Not sure if this is a bug or one of their many ‘features’ aka ‘working as planned’.
The problem with testing in SIM or Delayed is that any synthetic instrument will not trigger until the order price is reached or passed. In reality if you had working legs in the market it would probably get filled before that.