App Studio is generating a version 1.9 manifest which fails validation and stops side loading
I am using Microsoft Teams version 1.3.00.33671 and App Studio version 1.6.0. When I update any of my bots it is setting the manifest version to 1.9, previously it was generating a manifest version of 1.8. When I try to side load these apps they fail with a "Something went wrong message". Im trying to understand if there is a reason for this or anything I can do to change the manifest version, if I download and manually change the version then compress and side load the bot will install as expected.
You can manually edit the value easily - open the zip file, extract the .json file, and change it inside there. Then re-add it to the zip file, and try it again from there.
Fyi, I'm having a similar problem now trying to install the app directly using App Studio, from a manifest I installed into app studio a few moments before.