@P.D.: OK, I recommend switching to 4.18.0-13, since we'll be assuming that it's our last "good" kernel and we'll try to narrow down what's the issue between 4.18.0-13 and 4.18.0-14.
When you say "doesn't boot past grub" - what exactly do you see after grub? Just a blank screen? Any kernel logs at all (or stack trace, emergency shell, etc.) ?
@P.D.: OK, I recommend switching to 4.18.0-13, since we'll be assuming that it's our last "good" kernel and we'll try to narrow down what's the issue between 4.18.0-13 and 4.18.0-14.
When you say "doesn't boot past grub" - what exactly do you see after grub? Just a blank screen? Any kernel logs at all (or stack trace, emergency shell, etc.) ?