I'm able to link the account, but in system info, it is showing Roku account as not available Also, I'm not able to activate developer mode on my device. It is showing error message as "Developer mode can be enabled only on a linked device Please link your device to a Roku account"
Same issue on my side.
After factory reset my roku seems to be not linked with my roku account and I cannot enable developer's mode. On my.roku.com page my device is listed as linked.
Also, "search" functionality disappears.