Commands didn't work on commandblocks.
Commamdblock is missing anything at the end if you use
Here is the problem "@p"
Last thing my Plugin List
That鈥檚 a Spigot issue. Spigot doesn鈥檛 fully support command blocks in 1.13. Their hacked way used in 1,12 and below broke completely with 1.13.
Yeah, I'm fairly sure you can't use the @p etc selectors with plugin commands.
Not much I can do about that ^^
Something to fix this ?
Nag the developers of Spigot to fix it. The issues is soley in Spigot/Bukkit.