Grafana 6.0. Cannot color table cell

Hello,

Updated Grafana from 5.2.1 to 6.0 and now having next issue:
Lost all color table cells from all tables and now cannot color any cell that has string value (number value, even if I choose type String in Column styles still works also can color whole row from number value/column).

Tried to reproduce it on https://play.grafana.org/d/000000031/table-panel-showcase?orgId=1
and even there cannot color string cell values.

Need it to highlight error text values, so color row is not an option here.
Is anyone having same problem?

Anyupdate? I also can’t color cells based on StringValue