Run Action on a set of rows - Form Saved vs Automation bot

[JPAlpano]

I have the following setup:

Table 1  :    
Action A:   Update Table2 Column 3
Action A setup:
Do this: Data: execute an action on a set of rows
Reference table:  Table 2
Referenced Rows: 
FILTER("Table 2",  AND([Column 1]=[_THISROW].[Column 1], [Column 2]=[_THISROW].[Column 2]) )
Referenced Action:  Action B

Table 2:
Action B: Increment Column 3
Action B setup:
Do this:  Data: set the values of some columns in this row
Set these columns:  Column 3  = [Column 3] + 1

Issue:

Form Saved
If I set Table 1's Action A as a Table 1_Form's Form Saved behavior  -  Action Runs

Automation Bot
If I instead, create an automation bot using the same setup
Run action on rows
Referenced table:  Table 2
Referend rows:
FILTER("Table 2",  AND([Column 1]=[_THISROW].[Column 1], [Column 2]=[_THISROW].[Column 2]) )
Referenced Action:  Action B

The action doesn't fire

Why?

What's even more interesting is if I change the Referenced Rows of the automation bot into
Table 2[KEY], the action runs.  but I can't use this as it triggers the action on All Rows of Table 2.

What's going on here?