This feature takes a data dump from the Fractal unit and then parses it to get all the effects used in the current Preset as well as it’s bypass status. If you configure each switch and set it to a specific effect block, it will not work if you do not have those selected effects in the other presets.
Ohh.. OK.. I see. Now that I understand that, it makes more sense.
So… first up; bug - on FM9 - the descriptions are off
“AMP 1” & “AMP 2” are showing on MC6 as “Drive 1” & Drive 2"
“Drive 1” on FM9 is showing on MC6 as “Fuzz 1”
Secondly; “If you configure each switch and set it to a specific effect block, it will not work if you do not have those selected effects in the other presets”
I see where you’re coming from.. but I’d actually prefer this. If the block doesn’t exist, that’s my problem. As at the moment, I’d need to scroll through multiple pages to find the effect I want to toggle.. and I definitely don’t want things like Amp and Cab blocks being presented as the risk of bypassing those is catastrophic.
In reality, i’d be wanting to assign a small subset of effects to buttons of my choosing, and they’d be effects that are most likely to be present in all of my presets.. and things that I don’t use often but want immediate access to – which is the entire point of getting a MC6 to go along with the FM9 to give me a few extra buttons 
I’d also want the ability to change the text label to something more meaningful. (ie, Delay 2 may actually be “Slap”, or “Long Delay” etc etc).. and the colours… etc etc.. like configuring buttons as normal.
thanks for your efforts!
PS. changing Presets, the MC6 refreshes pretty fast and shows the states. That’s really great.
So.. if it could be configurable as per above, and for each of the effect blocks that are configured in the bank it reads their current state upon preset change like that, i’d be so happy
PPS. (sorry!!)
Just had a thought - not that i would bother myself (not initially anyway as I don’t have a use case at the moment), but for those that it would bother… I actually think the FM9 can send a MIDI command upon preset change.. which means if one really wanted to … you could configure different MC6 banks with the effect layouts you wanted for specific FM9 presets.. and trigger a bank change on the MC6 upon loading the FM9 preset… which would mean you could have the MC6 layout changing on the fly as you changed FM9 presets. Now that would be cool.
**edit.. confirmed.. this does work, just tried it
Sure, we can add that. That was in the initial scope but I removed it. I can look into it again.
This will not be possible in the current state. Maybe in the future, we can look at a Bank-wide “fractal integration” so you can name each preset individually in the bank (+ other parameters), and then then you enter that bank, it goes into an effect syncing state (different from the current implementation)
While testing the new Effect Bypass feature, with both devices running the latest firmware versions, I noticed the following issue:
When I toggle an effect on the FM9, the MC6 Pro responds accordingly. However, it appears that the MC6 Pro is not sending any information back to the FM9.
The Fractal tuner function on the MC6 Pro works correctly and the FM9 responds, so I assume the MIDI cable and connection are functioning properly. However, the Preset + Scenes Select function also does not work.
The MC6 Pro also freezes after testing from the MC6 Pro to the FM9.
What could be the issue here?
@james Any chance this fractal integration update will also be available on MC8 non pro ?
I’ve been tinkering with sysex a bit lately, but I’m missing a way to have the MC8 react to sysex from Fractal FM3, apart from adding some sysex translator in between or writing a custom firmware (which is waaaaaayyyy over my knowledge 
). So having access to this new firmware on the MC8 would help a lot !
Would that also be possible to have the Fractal Integration working as a preset and not bank ? - Like, could that be possible to add a preset with a fractal int. message, and in the parameters having sort of a radio menu where I can choose what effect I’d like to control, meaning it wouldn’t “call” a specific page (like the presets/scenes integration does), but just have a specific switch on the MC8 able to control an effect ?
Hope this is understandable