Twittererror:"UNAUTHORIZED_ACCESS""Thisrequestisnotproperlyauthenticated"

I'm using ScribeJava 6.9.0 for getting some Twitter statistics.
Most of my queries are executing OK:
https://api.twitter.com/1.1/account/settings.json
https://ads-api.twitter.com/6/accounts/...
...
But I have an error with one of them:
https://ads-api.twitter.com/6/stats/accounts/{account_id}/reach/campaigns?start_time=2019-11-01T21:00:00Z&campaign_ids={campaign_id}&end_time=2019-11-05T21:00:00Z
(in place of the {account_id} and {campaign_id} I send the real values).
In response to this request, I receive error 401 "Authorization required", with explanation: "UNAUTHORIZED_ACCESS", message - "This request is not properly authenticated".
The error remains the same if I remove any one of the time parameters (all of them are required in fact) and became 400 "Bad request", with explanation: "MISSING_PARAMETER", message "start_time" is a required parameter" in case of removing both of them (URL: https://ads-api.twitter.com/6/stats/accounts/{account_id}/reach/campaigns?campaign_ids={campaign_id}).
So I think that this is a library issue. I saw a similar issue here - #866 OAuthRequest - Twitter count param, without a solution. I don't use the "count" parameter intentionally but I suspect that it's not related to this parameter but to parameter processing in general.

该提问来源于开源项目：scribejava/scribejava