I seem to be experiencing this little bug where my (land) units will just stop attacking after a while. I've had this once before and it's very annoying, I'll set them to attack a province, they're in perfect supply, organization, strength, reinforcements, everything.
Then a bit later I check on their progress and half of them say ''No mission assigned to this unit'' and the other half are getting plowed now that they're outnumbered.
Then a bit later I check on their progress and half of them say ''No mission assigned to this unit'' and the other half are getting plowed now that they're outnumbered.