Track seperating while using the delete and cut button

This is a new problem. I’ve been using Audacity for 2 years and this just happened when I reinstalled it.

When I’m recording, I stop frequently and look at note etc, then start recording again. This creates a new track. At the end of recording I go back to edit. Any part I remove will then leave a gap between said track and the following track. How can I get the tracks to stick together like they used to?

Another new issue is, I can’t add any new copied audio to the beginning of my recording. I used to be able to add copied audio anywhere in the project and it would just add in, now i get a message about there not being enough room to add the audio. HELP please!

Enable the option “Editing a clip can move other clips:” in Preferences (see:
Does that fix it?