When reborn do Reptilians readily remember past lives, or do they have amnesia like most humans?

They have the same level of amnesia and disconnect as humans, and this is largely due to spirit meddler manipulation of the culture more so than extraterrestrial tinkering with their DNA, although that has been done as well by Anunnaki, not to the same degree and in the same way, but they too have been preyed on. This is what allows the Anunnaki to trust them to join the Extraterrestrial Alliance against humanity, because they also are partly under the thumb of the Anunnaki who, in their arrogance, believe they have everything under their control or it is simply a matter of time for their full measure of control to be in place.