Missed part of report after upgrade FAZ from 5.0.11 to 5.2.4

Hi there,

This dataset, executed against traffic log:

select coalesce(nullifna(`user`), ipstr(`srcip`)) as dldn_user, sum(coalesce(sentbyte, 0)+coalesce(rcvdbyte, 0)) as bandwidth from $log where $filter group by dldn_user having sum(coalesce(sentbyte, 0)+coalesce(rcvdbyte, 0))>0 order by bandwidth desc

in conjunction with attached chart, i could get a nice report from the subchart like attached below

After upgrade, same dataset and chart missed 'top blocked' in website  subchart, as shown above

(logs are there, blocked websites are there)

From where could I start?

Could anyone help with this?

Best,