@andersenleothe potential fixes (normalisation of reflected frames at source) were released in 1.21.0 so you can try now. I'll check what happened on the support ticket - you should be able to comment on it again to reopen it. I will be able to investigate further if the memory consump...
G:\arduino-1.8.13\portable\sketchbook\esp32-cam_ov2640-timelapse\esp32-cam_ov2640-timelapse.ino: In function 'void setup()': esp32-cam_ov2640-timelapse:166:7: error: 'sensor_t {aka struct _sensor}' has no member named 'set_reg' Ai-Thinke...