A/B settings with sidechain source switch

Hello,

I would like to examine two side chains in Frequency 2 with different sources and settings, say
A: source is SC In 1
B: source to be SC In 2.

It seems, when I switch from A to B, the source of A changed to SC In 2 looking at the “setup Side chain routing”

After switching to B, the source of A changed to SC In 2

Am I missing something?