Why is my tag get duplicated suddenly and I can't select using the tag

@lpf_jk_jk,

I’m having trouble getting help to help you. In the meantime, could you please create an issue and share the link here? Perhaps @rawkode, has some solutions for you? Thank you. I’m sorry this is happening, and I hope I can give you a concrete solution soon. There is another community member experiencing the same problem. I’m sharing their post in case you two find a solution.

Right now the only suggestion I have is for you to delete the shard, unfortunately.

UPDATE:
I got the following advice from support, typically they do:
-A select into – for the entire measurement.
-You articulate all the fields and then you group by all the tags (less the one you are trying to get rid of)
-Then you drop the measurement
-Then you re-run the select into and move the data back.
-If you have massive amounts of data already, this can be painful. The select into requires memory. The guidance is to typically chunk this into data sizes that will fit within memory.