Conditional Formatting with Calculation Groups - Issues, please help me

Hi community, I developed a model with some conditional formatting, and I'm quite happy with it.

Since the number of measures is quickly growing, I've started to implement Calculation Groups, to make it more efficient, and the model actually works fine with calculation groups implemented. Despite that, I found some issues with a simple conditional formatting configuration.

Download - Sample Model (300 kb):

https://www.dropbox.com/scl/fi/4sju5841r4m3afq7tewdo/Help_CalcGroups.zip?rlkey=v65nx5eshluxkz310ta7jacxe&dl=0

My basic conditional formatted visual without calculation groups looks as follows, and works just fine.

The formatting condition is pretty simple and based on one field.

The background of the rows of the table 'PL_Structure' is light blue where the field 'PL_Structure' [PL_Detail] has value 0 (running total rows), while are colored in light grey where the field value is 2 (subtotal row). The other - common rows - stay white (default color).

The structure of the table can be found in the attachment together with the model (DataSource.xlsx), and includes an explanation of key fields as well.

My formatting conditions

The "PL SubTot Color" measure simply reads the SELECTEDVALUE of the above mentioned [PL_Detail] field):

Now, with calculation groups implemented, I'm experimenting a strange behaviour, the numbers are just ok, but the table looks as follows:

Maybe I did not fully understand the logics behind calculation groups, but I find them extremely useful for maintenance purposes.

The attached model includes a side by side (with / without calculation groups).

I do appreciate any suggestion or fix. Thank you.

Marco