Bug fix. Some item tooltips were being hidden offscreen.

diff --git a/Modules/Position/Position.lua b/Modules/Position/Position.lua
index 407b7bd..8bed032 100644
--- a/Modules/Position/Position.lua
+++ b/Modules/Position/Position.lua
@@ -385,7 +385,7 @@ local positionTooltip = function()
 		GameTooltip:SetPoint(currentAnchor, UIParent, "BOTTOMLEFT", (x + xoffset) / effScale, (y + yoffset) / effScale + 5)
 	end

-	if isUnitTooltip then
+	if UnitExists(StarTip.unit or "mouseover") then
 		if mod.db.profile.defaultUnitTooltipPos == 5 then
 			hideGameTooltip()
 		else