[shadowcep]

Was just preparing this reply, then Baertram replied.

@Masteroshi430 it's interesting that you say zo_callLater works but EVENT_MANAGER:RegisterForUpdate doesn't: in the esoui-8.0.8 source code, file libraries\globals\globalapi.lua shows zo_callLater is implemented using EVENT_MANAGER:RegisterForUpdate.

function zo_callLater(func, ms)
    local id = ZO_CallLaterId
    local name = "CallLaterFunction"..id
    ZO_CallLaterId = ZO_CallLaterId + 1
 
    EVENT_MANAGER:RegisterForUpdate(name, ms,
        function()
            EVENT_MANAGER:UnregisterForUpdate(name)
            func(id)
        end)
    return id
end