Good morning as well,

That SET_WAIT command got me thinking, since I'm experiencing requote issues myself. It's not stated in the manual that SET_WAIT is able to prevent those from happening, but maybe they will(?)
Edit: never mind, I see that this brokerCommand isn't supported for MT4 access, see https://zorro-project.com/manual/en/mt4plugin.htm


Back to your issue, I hope that one of the Zorro vets can help you solving this.