It is something we have considered in the past, but one of the tricky aspects would be the question of what backend such an experimental branch calls.
As your save-games are on the backend, playing on an experimental branch could cause confusion between save-game versions, especially if the patches contain different content. And if the experimental branch were a clean slate, it's unclear how many players would bother with it, so it may be more hassle than the data we'd get back.
We also don't want people to have to download an entirely new build to check something like this, only to find that the issue persists.
Finally, as much as we do try to work with the community to help identify issues, we are keenly aware that you shouldn't need to do so. So we are trying our best to make the experience as smooth for players as possible, without expecting you to jump through hoops (sometimes this may be necessary, but we're not taking anything for granted...
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