Hi team,
in the preparation of two projects relating to the activities of two bands, I have several times found myself involuntarily modifying the routing of the Sends relating to the channels that are grouped in the special-purpose Group channel.
This was driving me crazy, in the end, after a thousand tests, I understood how to reproduce the issue, which, all things considered, can be reproduced in a rather simple way. 
- Create a new project by inserting an audio track with the Output Device left at the default value Song 1 (it doesn’t matter whether the track contains audio events or not)
- In the Mixer, create a new group channel Group 1 and use it as a Send for the channel associated with the audio track created in step 1.
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At this point the project can be saved and possibly reloaded and will be presented with the Sends of the Song 1 channel correctly associated with Group 1
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Create a new group channel Group 2 and, obviously without modifying the Sends of the Song 1 channel, save the project and then reload it
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The reloaded project will appear with the Sends of Song 1 previously associated with Group 1, incorrectly associated with Group 2
I have not checked, but it is probable that this behavioral anomaly of the Sends is not attributable only when there is association with Group channels.
I hope (but I am confident) it will be possible to fix this issue as soon as possible since, as you will certainly realise, it is quite tedious to rearrange the routing on projects of a certain complexity.
As always, thanks in advance. 
