Access violation at address $7715f5aa in module 'ntdll.dll'.
It is not memory leak error. What memory use o you see in the task manager for mpc-hc.exe process when the error appears?
in the image you highlight the resizer being set to "Bilinear"
It is for less CPU and GPU load and to reduce use of memory. It is just the lighter renderer for low performance PC and for test purposes to detect if error in madVR or not.