"apm_nuclear_ldinc": apm_nuclear_ldinc/lib/functions.lua:43: attempt to index field 'burner' (a nil value)
stack traceback:
apm_nuclear_ldinc/lib/functions.lua:43: in function 'nuclear_vehicle'
apm_nuclear_ldinc/prototypes/integrations/updates.lua:56: in main chunk
[C]: in function 'require'
apm_nuclear_ldinc/data-updates.lua:8: in main chunk

Fixed with 0.30.6
Thx for report!

The update for changing Car/Locomotive prototypes was missing. prorotype.burner was changed to prototype.energy_source