[Phinix]

Works:

function PLD.ScrollList(list)
	ZO_ScrollList_Clear(MainFrameListFrameList)
    local datalist = ZO_ScrollList_GetDataList(MainFrameListFrameList)
	local known
	local nametable
	local listsize = PLD.TableSize(nametable, list)
	for i = 1, listsize do
		local level = nametable[i].Level
		local saved = PLDGetTierSavedVar(i, list, 0)
		if IsItemLinkRecipeKnown(nametable[i].Link) == false then
			if saved == 1 then
				known = "|cffffff[s] |r"
			elseif saved == 0 then
				known = "|cc3c3c3[  ] |r"
			end
		else
			known = "|cffff00[*] |r"
		end
		datalist[i] = ZO_ScrollList_CreateDataEntry( 1, 
		{
			RecipeName = known .. "|c3a92ff" .. nametable[i].Name .. "|r" .. "|cffffff " .. level .. "|r",
		}
		)
	end
	ZO_ScrollList_Commit(MainFrameListFrameList, datalist)
end

Doesn't work:

function PLD.Test()
	ZO_ScrollList_Clear(MainFrameListFrameList)
    local datalist = ZO_ScrollList_GetDataList(MainFrameListFrameList)
	local known
	local searchtext = MainFrameSelectionFrameSearchBox:GetText():gsub('%W',''):lower()
	for i = 1, 486 do
		local name = ProvisioningLabels[i].Name:gsub('%W',''):lower()
		if (string.find(name,searchtext) ~= nil) then
			local ln = tonumber(ProvisioningLabels[i].Position)
			local level = ProvisioningLabels[ln].Level
			local saved = PLDGetTierSavedVar(i, 15, ln)			
			if IsItemLinkRecipeKnown(ProvisioningLinks[ln].Link) == false then
				if saved == 1 then
					known = "|cffffff[s] |r"
				elseif saved == 0 then
					known = "|cc3c3c3[  ] |r"
				end
			else
				known = "|cffff00[*] |r"
			end
			datalist[i] = ZO_ScrollList_CreateDataEntry( 1, 
			{
				RecipeName = known .. "|c3a92ff" .. ProvisioningLabels[ln].Name .. "|r" .. "|cffffff " .. level .. "|r",
			}
			)
		end
	end
	ZO_ScrollList_Commit(MainFrameListFrameList, datalist)
end

No errors, just fails to populate the list. Debug text shows all values are correct.
INFURIATING.