I am using Appian 7.5. I have applied MNI on a subprocess that has to

I am using Appian 7.5.

I have applied MNI on a subprocess that has to execute say 2 times. Have used the option on the others tab: Move on when...Each time an instance finishes...
An output "A" on the subprocess has been mapped to a process variable "B". This process variable is then appended to a multiple type process variable "C".
So each time an instance leaves the subprocess, the appropriate value of variable A gets stored in variable B which in turn gives a variable C to which all the subprocess instance values have been appended.
Issue is: The second instance of the subprocess is although appended to the variable C but the value at index 2 is also copied at index 1. So at the end, I get a variable C with the values {Apple,Apple} instead of {Apple,Mango}.

What logic should I follow so that the variable C should have the value {Apple,Mango}? Tried using "is stored at" instead of "is appended to" but with no success. Should I use tp!instanceIn...

OriginalPostID-112205

OriginalPostID-112205