About it. Hard to reproduce because its a random occurrence though.
Environment
Gamerule doMobSpawing is off.
MC-91402
Skeleton Trap bypasses doMobSpawning gamerule
Resolved
Duplicate
0
Can confirm. Easy to reproduce by setting short view distance on superflat world to 7 chunks, than set doMobSpawning to false and type /weather thunder 99999
Took about 5 minutes to notice a skeleton horse trap.