"null" message everywhere randomly

[usertjG4TS811X]

Anywhere I tap inside a text box, a message called "null" displays. 

I guess this is something related to Autofill as soon as I tap to the box and it tries to pull suggestions but couldn't find or something goes wrong. 

Edit: I might be wrong about this issue happening with keyboard. I have noticed this happens with other actions too. One is everytime I use back button to close an app, thus isse happens(see new screenshot) without any keyboard interaction. 

See screenshots attached. 

[Adibordoy]

I'm not getting that, but I'm using Gboard.

[usertjG4TS811X]

It is not just with keyboard. I have updated the post now

[MartynaK]

@usertjG4TS811X, 

Please report this issue via the Members application, so that it can be quickly resolved! 😉

[WoodyRdg]

Has this issue been resolved yet. I'm getting it too. Since upgrading.

[usertjG4TS811X]

Hi WoodyRdg,

I did get a reply from Samsung after their investigation. It was the Mozilla Firefox app that was causing this issue so Samsung could not resolve. I was using Mozilla Firefox Beta, so I uninstalled that and installed normal Firefox and the issue was gone for me.