Post: #1

On certain places in the world, spawns can be placed and initiated, but nothing spawns. When you negate and reactive the spawn, nothing ever shows up. Any idea why this is?

Post: #2

check if the creature of this spawn is with the corret id
try to put it on the map like .addnpc XXXX where XXXX is the same id on the spawn.

If this id is correct, post the coordanates, so we can try on our shard and know if its a sphere problem or ur sphere problem.
Cheers.

Post: #3

Does the gembit have an amount allocated to it?

Post: #4

check to see if you have too many items in the sector, if so check ur ini file and increase it, or remove some of the spawns.

it could also be the version of UO u are running, try switching to an earlier version, be sure you MUL files for sphere match those you are using in ur client