[SOLVED] Raspbian bug kills Moitessier HAT systems after upgrading to kernel 4.19.118

[jamieFL]

Here are the steps I followed exactly:

1. Re-image my SD card with Openplotter Moitessier HAT.
2. Run through initial setup but do not update RP at the end.
3. Install Wifi drivers.
4. Update all OP Apps.
5. Install MCS App.
6. Reboot.
7. Download and install moitessier_4.19.118_2.0.1_armhf.deb, which fails at the end.
8. Run: sudo moitessier/scripts/bug_fix_kernel_4.19.118 moitessier/dtbo/i2c-gpio_bug_fix_4.19.118.dtbo
9. Reboot.

My Pi will not reboot after that. If the instruction are not clear, and I'm doing something wrong, then please fix the instructions. If I've followed the instructions correctly, then there must be a problem. Could the MCS app be causing the bug fix to fail?