If you've ever run a Linux VM in VirtualBox and had copy-paste between your host and guest just... stop working, this post is for you. What started as a simple "my clipboard isn't syncing" turned into a proper detective story involving conflicting installations, a kernel module stuck "in use," ...
Source: [Dev.to](https://dev.to/oyebobs/the-case-of-the-vanishing-clipboard-debugging-a-virtualbox-guest-additions-conflict-on-kali-linux-5cda)