Inconsistent Regex Behavior | Blue Prism Product

My process does the following

1. Pulls a value in from Excel as text.
2. Checks if the value matches the Regex pattern “^\d{3}$” using the Test Regex Match action.
3. Makes a decision based on the Matched? output of the action.

I’m trying to make sure the field contains 3 characters that are numbers i.e. “123”, When I run in debug the action behaves as expected. When the process is ran from Control Room it randomly matches 2 digit text such as “30” or “17”. The issue is inconsistent. During the same run, text such as “55” will fail to match which is what I expect. Does anyone have any insight as to why this might be happening?