Why does this happen(glue tool bug)?

This happens when I group-glue notes.
Any ideas as to why this happens? Or is this a known bug in 8.0.10?

https://youtu.be/ZPhusYiSy70

Hi,

It shlould works like this, when you hold Alt modifier on your computer keyboard, during the gluing.

Please, make sure, you didn’t change your preferences. Open Preferences > Editing > Tool Modifiers > Glue Tool. Here, you should see Action: Glue All Following Events; Modifier: Alt.