I've got it!

I set everything up properly this time. I went with the following:

I tried your "RC2=1" suggestion, but it did not recognize it.
Anywho- You'll see that I had to specify the Range for org to be A2 rather than A1. Somehow, in doing this, it was affecting the results of the conditional formatting. I troubleshooted by running the macro, and then referring to the Conditional Formatting- as if I intended to set it up manually- and reviewed what the macro did exactly.
It set it up just as we told it to via code. So the Rule appeared as:
Formula: =$B2=1 | Applies to: =$A$1:$L$264 (or L1.End(xlDown)).

But, when compared to how I recall setting it up previously- I was selecting only the area containing the information- i.e. less the header row. So it should have appeared as =$A$2:$L$264.
I manually edited it to appear as such to see if it would correct the formatting- but it didn't. I opened up the rules again to have another look, and noticed, by changing it to $A$2, it then changed my Formula to =$B3=1. So, I edited it back to $B2, hit apply and presto magnifico- it worked.

So, I started over. Pasted the timeline back into Excel, and reran the macro with my new edits- changing org to be Range("A2:L" & cc). And it works perfectly now.

I literally tried changing things several times before i even thought to just review what the macro set up for the conditional formatting rule and make sure it appears exactly as I expected it to. Troubleshooting for myself, helps me to understand what I'm doing wrong- unless I am stumped and then I must call on the master known as Bob Bridges!

Thanks again. I think you may be able to finally set our 4 page 50+ post thread to 'SOLVED' lol.