In Trados 2021, I just double click the file and it will open in Editor view. However, inTrados 2022, if I double click a single xliff file, it will open another Trados studio programe (despite a Trados programe is running already), and nothing appears. Eventually, I got two identical Trados studio 2022 runing, but none of it shows content of this xliff file in Editor view.

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Does any one know how to fix it?

updated: 

I can open single xliff file by using [Translate Single Document]...

But it would be better if I could just double click the file.