I'm creating a walkthrough video in a building model and have a lot of weird flashing going on in the reflections. I've maxed out the samples and have a strong machine to handle the path tracing. I've done several renders with different options, but it happens every time. Here is a link to an example
Any assistance to get a clean render out would be appreciated
Keep in mind you can manually increase the sample by pixel by typing in a value and not using the slider (the max value is 65,536). Did you try with Denoiser off and fireflies off? I see you posted in the Facebook group and you will get good feedback there as well.