[Elariah]

This is my whole block bit here

local party = oUF:Spawn("header", "oUF_Party")
party:SetManyAttributes("showParty", true, "yOffset", -58)
party:SetAttribute("template", "oUF_Party")
party:SetPoint("TOPLEFT", 10, -192)
party:RegisterEvent('PLAYER_LOGIN')
party:RegisterEvent('RAID_ROSTER_UPDATE')
party:RegisterEvent('PARTY_LEADER_CHANGED')
party:RegisterEvent('PARTY_MEMBER_CHANGED')

local partyToggle = CreateFrame('Frame')
		partyToggle:RegisterEvent('PLAYER_LOGIN')
		partyToggle:RegisterEvent('RAID_ROSTER_UPDATE')
		partyToggle:RegisterEvent('PARTY_LEADER_CHANGED')
		partyToggle:RegisterEvent('PARTY_MEMBERS_CHANGED')
		partyToggle:SetScript('OnEvent', function(self)
			if(InCombatLockdown()) then
				self:RegisterEvent('PLAYER_REGEN_ENABLED')
			else
				self:UnregisterEvent('PLAYER_REGEN_ENABLED')
				if(GetNumRaidMembers() > 0) then
					party:Hide()
				else
					party:Show()
				end
			end
end)

I was in combat, I invited another to group. I see that person's frame okay. If I invite a 2nd person I won't see that. Or if someone invites me to a group of 4, I only see 1 person's frame only.

If I leave combat, I still only see one persons frame. If I kick the person who's frame I see, I'll see a different persons frame, but still only 1 frame.

It's like if you enter a group while in combat, it locks the party to only showing one frame.

EDIT: I've tried your layout, Freebgrid and it doesn't suffer from this, I can join a 3 person group no problem and it shows all okay.

I'm off to bed now, but I've uploaded the folders relevant to my UI. It's a modified version of Sauls.
http://www.lovehina.me.uk/wow/NaruUI.zip Obviously the main file is oUF_Saul.lua

I'm at a loss as to why Freebgrid's works fine but this one doesn't