"Memory Graph Debugger: no serialized memory graph received from LeakAgent" error when using Xcode Memory Graph Debugger

Question

I'm using Xcode 10.2.1 and macOS Catalina Developer Beta 2. Whenever I try to use the Memory Graph debugger, I get this error:

Memory Graph Debugger: no serialized memory graph received from LeakAgent

After that, the loading spinner spins indefinitely.

I've tried the answers recommended under this related question, but unfortunately, none of them worked. I tried to reinstall the app; restart Xcode, the iOS Simulator and my computer; deleted the DerivedData folder, and tried different simulators - none of these worked.

Answer 1

The above answers didn't work for me. But this one did. As the linked answer mentioned:

1. Disable the address sanitizer
2. Enable the malloc stack