Audio events get joined without gluing them

I don’t know what is going on here. I have audio parts on different tracks above each other, they are not in a group and neither have they been ‘glued’ in any way and are nothing to do with each other. When I choose one of the audio events it then selects other parts above and below. I have searched and searched and cannot find a solution, if anyone can point to the button that will stop this annoying behaviour it would be greatly appreciated. Many thanks.

If it is i side folder track, check if you enabled “group editing”,
Or maybe you accidently created clip packages

Update. This only happens when audio files are in the same folder and it doesn’t always happen throughout the project

Thanks Soundcage. Every day’s a school day. Have never used or activated this tool, I must have pressed it by mistake. Took me an age to find that button, I fiddled with the = next to the cursor arrow.