Can't pass [] to extern function object method

[frame]

On Monday, 16 November 2020 at 22:22:42 UTC, frame wrote:
> On Monday, 16 November 2020 at 21:58:44 UTC, Jack wrote:
>
>> What is the function prototype like and how are you declaring 
>> that struct?
>
> The struct is very simple, it contains:

I found the "bug". It was caused by a debug {} statement within a 
struct method. I assume that the debug symbol is just 
incompatible called from the DLL context.