Mobs can't enter in nether portals but they can leave

I’m with this problem in my server, the mobs (or itens) in world can’t enter in any nether portal, but the mobs in nether can leave the nether using the portal with no problem…

I didn’t have found anything like this in google or here and have no more idea of where to look for a solution :frowning:

I have this problem since the begin,even when I disabled the plugins :-/

using the papermc 1.17.1 #196 and using these plugins today: armorstandeditor, customstructures, dropheads, essentials, essentialsspawn, farmprotect, floodgate, geyser-spigot, griefprevention, libsdisguises, lobbyapi, luckperms, mcmmo, multiverse-core, mulstiverse-inventories, multiverse-portals, placeholderapi, plotsqared, pluginconstructorapi, protocollib, singleplayersleep, skript, skript-reflect, skript-yaml, themis, vixio, worldedit and worldguard…

thanks \o