I was looking around and seen that there was a bug that prevented 1.10.2 from showing up in the Spigot/Bukkit list because it seen it as an older than 1.8, there was some update ( I can find the link ) that hexparrot gave to the user but I don’t know how to update the WebUI to show it.
How to update the WebUI has been descibed in numerous posts on this forum, try searching the forum for “update WebUI”.
It is also described in the wiki: https://minecraft.codeemo.com/mineoswiki/index.php?title=Updating_the_Webui