User Storage is empty for same google account

[sachitad]

Hi there,

For some privacy reasons, we don't want to enable account linking feature but we have some personalization built-in. If a user is coming on the bot for the first time, we generate UUID, store that into user storage and expect the user storage to come back with UUID if user is at least using the same account to interact with the bot regardless of the devices. But the problem is for smart speakers we are always getting users as VERIFIED but empty user storage even if they are signed using the same account. Has anyone else faced this problem?