Yes, please do. Are you aware of how to send Hub Logs via the IDE? Being able to send those when you are experiencing an odd behavior would be very helpful to look into this for your Beta Hub.
Let’s start off with checking your WiFi Router’s 2.4Ghz Channel compared to your Hub’s Zigbee Channel (these two should be sufficiently separated). This can be found when logging into the SmartThings IDE → “My Hubs” → “View Utilites” → “Zigbee Utilities” section and it is listed/configurable there.
I’d also recommend trying powering down your Hub for an extended period of time (~20 mins) as this can help the Zigbee Mesh re-build itself.
Last but not least, if your entire Zigbee mesh relies on bulbs, that’s something I would look at correcting for the long-term stability of your network. Get some Outlets, Switches, etc. that are AC-powered and designed for a reasonable load.
Sengled Bulbs generally do not repeat, but some do and even those should not be the main Router nodes in your mesh as a best practice. Hope this helps, if not please do reach out to Support@SmartThings.com.
That first one was an example of a warrantied return and the second one (IMO) sounds like it could be an IKEA device issue (“I recently picked up…”). Willing to be wrong of course, but we do need people to report via Support Channels (and someone should probably also try and report to IKEA) to properly triage such issues.