One $tag alias missing from table panel

I am pulling my hairs over a table panel in 6.4 and checked that it also fails with 7.0.0.
For one of the rows in my table, the tag changes to “N/A” when I specify the $tag_seqnr alias. It just works in the bar gauge panel (and all my others). Just not in this table. Wonder whether it could be due to the string value appearing like a huge float? -Rob

PS I know the order is reversed, but I think it shows that the ‘07E3866’ tag is lost.

WEIRD. Please file a bug report in the Grafana repo for this.

Thank you for the extra pair of eyes.