Can't get 'Line Map' to render

Looker Q&A Looker Studio
1

I’m trying to create a Line Map using a concatenated LOCATION field as follows:
CONCAT(lat,", ",lon)

I have a field called ‘trip_id’ I’m using in the ‘Color dimension’ field.
I have a field called ‘seq_id’ which is used to sort the records.

The map displays fine as a ‘Bubble Map’ but ‘Line Map’ shows nothing

Thanks!

2

I have the same issue

3

The space after the comma might be an issue here - try changing your formula to

CONCAT(lat,",",lon)