There is few locations I come back to that to that only a few enemies have respawned or none have respawned. One is Robbers Gorge, I first went there and that place was loaded with bandits now I go back and there is only two bandits there.

The other is Broken Tower Redoubt. There is no Forsworn there at all and there was several there.

Another one is Valtheim Towers there was bandits all over that place now there is only one at the entrance.

The last one so far I have noticed is Fort Greymoor. This place also had bandits everywhere and now there is only two here. It might be worth noting this is the only dungeon of the four I have not cleared.

It might also be worth noting that in these areas the enemies have dropped their weapons and they have remained in the same place over a year in game time. Does the enemies not being swept from the world have something to do with the none respawning enemies or are they not supposed to respawn?

Lastly if this is a bug, I want it fixed. If not and it is supposed to happen its a dumb idea, the enemies should respawn back in full numbers at their dungeons so the place remains dangerous and tun to explore again.