Hello @Martin Lžíčař,
It seems this is a cloud version of the Stream Analytics Job, not the edge version.
Have you tried to access the job in the portal using another browser or in incognito/private mode?
Do you know for sure you have access rights (provided by some cloud administrator) to manipulate the job?
As an alternative, you could try to access the job using Visual Studio Code, with the ASA extension tooling.
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