Alexia Amber

Have you tried booting into Safe Mode with the new SSD installed, or resetting NVRAM if your hardware supports it? Since the old SATA drive still works, it might be worth booting from it and checking whether the cloned system has the correct graphics configuration and boot settings. Does the new SSD show the same issue when connected through USB, or only when installed internally? That might help narrow down whether it’s related to the clone or the drive setup.