Postman 7.26.0 on MacOS (Catalina) keeps locking up

With the 7.26.0 version, Postman will lockup periodically and accept no mouse
input. I have resorted to quitting in and re-starting. It seems to happen while
processing and formatting JSON output, but I’m not entirely sure about that.

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Same thing is happening to me on macOS Catalina 10.15.5 on a MacBook Pro (16-inch, 2019). The app is really unresponsive in most parts of the UI. Every click requires waiting several seconds for the UI to update. Some parts of the UI never work (like selecting a GraphQL schema to use in the body of a request).