Is EiffelStudio becoming unresponsive a side effect of debugging because the application is crashing? If so, it should take about 60 seconds before it realizes that the application has died.

On the application front, would it be possible for you to follow the instructions at https://dev.eiffel.com/Debug_generated_C_code and attach a C debugger to the application to see where exactly it is crashing?

Also could you preserve the W_code folder when it is crashing and send it to us along with the new one (stripped of object files) so that we can see the differences? It might not be that easy for us to find the reason of the crash if there has been a lot of changes but it could help.