Luna Sidechain Issue

[LesBrown]

I have been having an issue with keeping sidechains set on multiple compressors on a bus. Hopefully I'm just doing something wrong.

I am trying to use multiple compressors on a rhythm guitar bus, sidechained to busses for lead guitar, lead synth, lead guitar 2, etc.

What happens:
- On a rhythm guitar bus, I insert an API 2500 and set sidechain to the lead guitar bus. The SIDECHAIN display in API 2500 shows the sidechain set to the correct bus.
- I insert a second API 2500 after the first one. On the second API 2500, I click on "SIDECHAIN: ASSIGN". The assignment automatically switches to the same bus assigned to the first API 2500. Meanwhile, the assignment on the first API 2500 resets to "SIDECHAIN: ASSIGN".
- I click the first API 2500 "SIDECHAIN: ASSIGN" and it automatically switches to the same bus assigned to the second API 2500, while the second API 2500 resets to "SIDECHAIN: ASSIGN". This is only fun for the first hour or two.

Is this expected behavior? It's happening on Fab Filter Pro-C also, but I haven't tested others. This is not the first time I have had this happen in Luna.

Images: 1. sidechained 2500, 2. second 2500 added, 3. click to assign sidechain for second 2500 and the first one switches to default, 4. click on first 2500 to re-set sidechain and the second one switches to default.

 

[Axel_L]

As far as I understand it, you can only define one sidechain source per track or bus in LUNA. For the second API 2500 compressor, you would have to forward the signal to another bus.
Maybe it would be easier to send all relevant signals to one bus that will serve as sidechain source for one API 2500 on your rhythm guitar bus?

 

[LesBrown]

As far as I understand it, you can only define one sidechain source per track or bus in LUNA. For the second API 2500 compressor, you would have to forward the signal to another bus.
Maybe it would be easier to send all relevant signals to one bus that will serve as sidechain source for one API 2500 on your rhythm guitar bus?

Thanks!

I often use different comp settings depending on the sidechain source. I thought I had done this before in Luna, but maybe I'm thinking Logic. I guess I can automate comp settings and/or do the bus shuffle. cheers

Edit: In case it helps someone later, this video discusses this topic at around 30:30.