[C-8] Zigbee devices that do not pair correctly in HE

I seem to be having the same issue trying to add an IKEA Sound Remote Gen 2 (E2123) to my C-8. I had previous connect an E2123 to my C-5 and it continues to work after the upgrade to C-8, However, I cannot connect a new E2123 to my C-8, initially thinking it may be faulty I got an exchange from IKEA but it's the same result. It looks to pair but doesn't respond.

New E2123 paired to C-8 (not working)

image

image

Existing E2123 on C-8 paired via C-5 (working)

image

image