@missingxtension so, pm2’s job is to start and keep running the processes it manages.
chromium is not supposed to ‘exit’, altho it does on 2nd thru nth, when it opens a page in an existing browser…
the question is why did the 1st instance end…
did u change the package,json after install?
do this
pm2 delete 0
then run the fixuppm2 script from my scripts site… last entry
https://github.com/sdetweil/MagicMirror_scripts
this will recreate the pm2 entry