Hi there. I've been moving my workflows over to use the multi step functions with great success, has made the large workflows much more manageable but i've just starting now getting this error on a multi step function that was previously working, could you let me know what the problem could be:
"Function block parameter 50a3eeaf-0be6-4cd0-9ecd-af4b360fbab0 not found"
So i've just resolved this, but a bug worth looking into. So I was running a multistep function in a loop, and receiving that error. I've had to create a new loop, set it up exactly the same, and now the error is gone.
I'm glad to hear that you were able to identify a fix, @Elliot_Pitts! I've seen similar reports in the past, but have never been able to replicate the behavior. The fact that just recreating everything restores the functionality makes me think something very odd is happening. 
You didn't have to recreate the function itself, did you?
Nope, just the loop using the function. Thanks for the response, this new feature has made our complicated workflows now much simpler.