This happens to some of players in my server, and I have no clue what causes this.
They don't have teleport cooldown bypass permission, and the cooldown was 3.
They can't use any Essentials's teleporting related commands like /warp or /spawn, or Towny's teleporting command that uses Essentials cooldown.
They waited for 3 seconds and nothing happened, no error message sent to them, and no error logs.
Here is the debug, CauNhOk was the one who had this issue.
[17:58:10] [Server thread/INFO]: CauNhOk issued server command: /spawn [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk has essentials.mail - true [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk has essentials.spawn - true [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk can afford charge. [17:58:10] [Server thread/INFO]: [Essentials] calculated command (spawn) cost for CauNhOk as 0 [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk can afford charge. [17:58:10] [Server thread/INFO]: [Essentials] calculated command (spawn) cost for CauNhOk as 0 [17:58:10] [Server thread/INFO]: [Essentials] looking up groupname of CauNhOk - default [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk can afford charge. [17:58:10] [Server thread/INFO]: [Essentials] calculated command (spawn) cost for CauNhOk as 0 [17:58:10] [Server thread/INFO]: [Essentials] calculated command (spawn) cost for CauNhOk as 0 [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk has essentials.teleport.timer.bypass - false [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk has essentials.teleport.timer.bypass - false [17:58:10] [Server thread/INFO]: [Essentials] checking if CauNhOk has essentials.teleport.timer.move - false [17:58:11] [Async Chat Thread - #29/INFO]: ForKeOO: qua do anh cho tien [17:58:11] [Server thread/INFO]: NgXTruongHai issued server command: /r e nhiều bạn nên a k tiết lộ ra đâu [17:58:12] [Server thread/INFO]: gilgamesh issued server command: /? [17:58:13] [Server thread/INFO]: gilgamesh issued server command: /help [17:58:13] [Server thread/INFO]: [Essentials] checking if gilgamesh has essentials.mail - true [17:58:13] [Server thread/INFO]: [Essentials] checking if gilgamesh has essentials.help - false [17:58:13] [Server thread/INFO]: §cgilgamesh §4was denied access to command. [17:58:13] [Async Chat Thread - #29/INFO]: trieupro199: them lay day [17:58:15] [Server thread/INFO]: [Essentials] checking if PoyPoyNgo has essentials.back.ondeath - false [17:58:15] [Server thread/INFO]: [Essentials] checking if PoyPoyNgo has essentials.keepxp - false [17:58:15] [Server thread/INFO]: ysec issued server command: /warp phuphep [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec has essentials.mail - true [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec has essentials.warp - true [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec can afford charge. [17:58:15] [Server thread/INFO]: [Essentials] calculated command (warp) cost for ysec as 0 [17:58:15] [Server thread/INFO]: [Essentials] calculated command (warp-phuphep) cost for ysec as 0 [17:58:15] [Server thread/INFO]: [Essentials] calculated command (warp) cost for ysec as 0 [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec can afford charge. [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec has essentials.warps.phuphep - true [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec can afford charge. [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec has essentials.teleport.timer.bypass - false [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec has essentials.teleport.timer.bypass - false [17:58:15] [Server thread/INFO]: [Essentials] checking if ysec has essentials.teleport.timer.move - false [17:58:16] [Server thread/INFO]: locchomoi741 issued server command: /t spawn [17:58:16] [Server thread/INFO]: [PLAYER_COMMAND] locchomoi741: /t spawn [17:58:16] [Server thread/INFO]: [Essentials] checking if locchomoi741 has essentials.teleport.timer.bypass - false [17:58:16] [Server thread/INFO]: [Essentials] checking if locchomoi741 has essentials.teleport.timer.bypass - false [17:58:16] [Server thread/INFO]: [Essentials] checking if locchomoi741 has essentials.teleport.timer.move - false [17:58:18] [Server thread/INFO]: gilgamesh issued server command: /muavip [17:58:18] [Server thread/INFO]: [Essentials] checking if ysec can afford charge. [17:58:18] [Server thread/INFO]: [Essentials] attempting to charge user ysec [17:58:18] [Server thread/INFO]: [Essentials] charging user ysec money 0 [17:58:18] [Server thread/INFO]: [Essentials] charge user ysec completed

hi, with 5 sec delay, i've not problem in my serveur, maybe it fix it for you.

Please use http://pastebin.com or another pastebin website to paste your logs. It makes it hard to read.

I have tested this on build 354 and there's no issues with teleport delay when executing /spawn. I suspect the issue is not caused by EssentialsX but by another plugin interfering. A good way of figuring out which plugin is causing the issue is by removing each plugin one by one, keeping EssentialsX on for last. If the issue still occurs then, please reply.