Debug Mode not Working STM32F469I-DISCO in STM32CubeIDE

[Kneepatch]

For some reason my STM32CubeIDE debug mode is not working for my STM32F469I-DISCO board. Whenever I run the debugger, the screen on the STM32F469I-DISCO does not initialize (stays black), even when I press the Resume button (play/pause icon). If I press the pause icon, the debugger session seems to crash/exit. It ignores breakpoints. It's as if the STM32F469I-DISCO is in its own little world, wholly unconcerned with whatever I do. I have attached a video demonstrating the issue.

[Ozone]

I would recommend to disable the "hidden part" of the debugger.
I'm not a Cube user, but I'm quite sure it has a setting "run to main()" enabled by default.
Disable the setting, and put a breakpoint in the startup code, as early as possible.
I suspect some init code fails, either RAM init, clock setup, or (as probably in your case) setup of the ext. memory interface.

[Andrew Neil]

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@Ozone wrote:

I'm not a Cube user, but I'm quite sure it has a setting "run to main()" enabled by default

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Indeed it does:

In the 'Debug Configuration' settings