Unofficial Skyrim Special Edition Patch

Also, I meant to mention that I'm unsure how often the summoned archers miss when firing their arrows, but it does happen occasionally since there were arrows lying around in several places that I had visited previously. Apparently, the arrows they use are the unplayable versions, which may mean that neither issue can be addressed.

After further testing, the same thing can potentially happen with any type of follower who misses when shooting arrows. One of Lydia's iron arrows is still in the same spot floating in a creek after the cell reset. This leads me to believe that it's an engine issue. I don't understand what was done long ago in the USKP days to get player and NPC fired arrows to clean up, but obviously that "fix" didn't or couldn't account for this happening with followers (or summoned followers). As is the case with the summoned Daedra's arrows in the original report, these arrows can't be picked up either.

I do have some saves available, but they probably won't be helpful in this case.