[atlas] API Keys problem?

Hi,
Has there been a change in the way that API keys work for the measurement
results API?

I've got an API key which is granted permission to get results from a
non-public measurement.  When I do:

curl -H "Authorization: Key $KEY" "
https://atlas.ripe.net/api/v2/measurements/$MEASUREMENT/results/?start=
1520510400"

(Replacing $KEY with the key and $MEASUREMENT with the measurement ID) I
get:

{"error":{"status":400,"errors":[{"source":{"pointer":""},"detail":"Your
keys has no grants"}],"code":102,"detail":"There was a problem with your
request","title":"Bad Request"}}


This was previously working, but I'm not sure exactly when it stopped.
I've checked that getting the data through my browser works while I'm
logged into the site, and that if I request
https://atlas.ripe.net/api/v2/measurements/$MEASUREMENT/latest using the
API key I get data returned.

Regards,
Dan
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