My setup is:

I collect eventlog lines (working fine).

On this item is have a calculated item name, amount of log lines last hour with formula:

count(//eventlog[\{myeventlog},,200,skip],1h,,)
itemkey: myeventlog

This also give a numeric value which seems to be the correct value.
So far so good

Building a trigger:

[code]

last(/mytemplate/myeventlog)
>
baselinewma(/mytemplate/myeventlog,1h:now/h,"d",3)

[/code]

Triggers just fine however with operational data as "Baseline {ITEM.VALUE2} vs now: {ITEM.VALUE1}"

(got 3 different systems with the same template)

The frontend shows: Baseline 4 vs now: 4 
This 4 is the value of Item.Value1

When I make a new calculated item with the baselinewma formula the value shown in latest data is 7

^^ there is about 30m time difference between the operational data and latest data screenshots. (problem was almost 30m active at that time)