"Renesas fire threatens 'massive impact' on global chip supplies"
https://www.theregister.com/2021...
#1 Hardware Problem? https://www.avrfreaks.net/forum/...
#2 Hardware Problem? Read AVR042.
#3 All grounds are not created equal
#4 Have you proved your chip is running at xxMHz?
#5 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand."
What a mess, even if just a section burned, the whole plant might be contaminated by soot.