One of my approved prokestops is not appearing. Where did it go?
Welcome. If you ald wait at least 48 hours The most common reason is because its in the same cell with another wayspot. Only 1 wayspot can be pokestop or gym per cell. Your nomination can be powerspot depending on distance to nearest wayspot. You might want to learn about s2 cells in order to prevent further dissappointment but know that missplacement of wayspot submission into empty cell is subject to abuse ladder system.
Hello and welcome @WheatFarm
I am going to create this as a new topic.
If it is more than 48 hours then it is likely that it hasn’t met the rules that Pokémon Go set for selection have not been met.
https://pokemongohub.net/post/article/comprehensive-guide-s2-cells-pokemon-go/
The above article is quite technical but does explain.
If you would like to provide the name of the wayspot and its location we can try to check but we might not have a full answer as we have limited information.