Issue with setting up merge logic

Hi all,

   I know there are other threads relating to merging text fields, but I have set up a campaign that I believe works, but isn't working . This is my smart campaign logic:

Whenever a text field called "Comments Temp" is changed, then merge whatever is in that "Comments Temp" field with what is in the "Person Notes" field.

I ran another smart campaign to change the value in the "Comments Temp", into "abcdefg". The Comments Temp value has changed, but is NOT activating the smart campaign above and starting the merge logic in the flow step. I also did the same thing with a list import to change the Comments Temp value.

Does anyone know what I'm doing wrong? Thanks in advance