No solution yet, but I have messaged Firebase. I will post on here if this is solved. Please can you do the same if we solve this. I have added more detail about the version of Firebase we are using etc as a comment on my post above. Please can you see if you are using the same version or if anything else links up which may be the root of the issue?

No solution yet, but I have messaged Firebase. I will post on here if this is solved. Please can you do the same if we solve this. I have added more detail about the version of Firebase we are using etc as a comment on my post above. Please can you see if you are using the same version or if anything else links up which may be the root of the issue?