By using Rest API post method url as "/rest/api/2/issue/IS_1/transitions"
and request body as
{"historyMetadata":{},"update":{"comment":[{"add":{"body":"Bug has been fixed."}}]},"fields":{},"transition":{"id":"941"}}
with above request i am getting error as below
{"errorMessages":["Can't move (IS-46). You might not have permission, or the issue is missing required information. If you keep having this problem, contact your Jira Administrator."],"errors":{}}
but from Jira cloud UI i am able to update status but from api i'm getting above error