Single Player world acts like multiplayer

While playing in my single-player hardcore world, I slept in a bed and then randomly started spamming. However, when I did this, it kicked me out of my world for "spamming" and connection lost. It sent me to a list of my multiplayer worlds. I was wondering if this was a glitch.   Attachment link: (Onedrive) Minecraft 1.20.6 2024-05-05 18-48-05.mp4