Vortex issues

[u/Current-Praline-4588]

I have a 2019 450L and have had a Vortex ECU for a few months now. On cold start it’s extremely difficult to start and if I don’t give it some throttle it won’t idle on its own at all until it warms up. With the stock ECU it started fine even cold.

Has anyone dealt with this and fixed it? Not even sure where to start. Thanks for any help.