You can try removing the one switch from the network and then selecting all stack members to add them at the same time. ... View more

Documentation was updated last week to reflect this caveat. At this time, hybrid mode is available to everyone, so this should no longer be a concern. Let us know if you do not see the option at this time. ... View more

As an update, hybrid mode is now available to all organizations. If you do not see the choice to onboard in hybrid mode, please reach out to Support for assistance. ... View more

For clarification, hybrid mode is being rolled out in phases and is not available to everyone yet. If you do not see the option to select hybrid mode, please check back again soon.   Any switches added to organizations where hybrid mode is not yet available will be added to cloud operating (fully managed) mode. ... View more

Supported models for cloud operating mode (fully managed) are available here.   Supported models for hybrid mode are available here. ... View more

This looks like a backend issue that will require more investigation. I would recommend opening a support case for this. https://meraki.cisco.com/meraki-support/overview/ ... View more

If you are interested in participating in the EFT for this feature, please take a look at this topic: EFT opportunity: IOS XE upgrades using Cloud Monitoring. ... View more

Glad you were able to get this working! Thanks for following up with the resolution. ... View more

@DevOps_RC What region are you in? I'd like to take a closer look at this. ... View more