Stack frames are suddenly missing. Did I break something?

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:bust_in_silhouette: Asked By António Sarmento
:warning: Old Version Published before Godot 3 was released.

Godot 2.1-master on Mac OS X 10.11.x

From one moment to another, I stop having stack frames. This is crucial to debugging, and now I can’t seem to get them. Not even the breakpoints make the built-in editor jump to the line where the breakpoint happened.
I tried to revert to an older commit where I was sure it’d work, but it’s still missing. Did I deactivate some option by accident?

Thank you for your time!

:bust_in_silhouette: Reply From: António Sarmento

The problem was due to a Thread running in the background in an Autoloaded node (that I wasn’t using).
Somehow, that thread would cause a mess to the debugger.