Looking into this further it appears I'd flipped the decider for high/low gfx, which in turn loaded a transparent video on LowGFX mode for this scene; this can cause issues if with flashing white lights, especially on phones (which is where the possible flashing lights disclaimer comes from).
I've edited the transparent video for the next update to not ever flash completely white, but rather flash the stars. No way around the flashing, but hoping this will be less impactful. Thanks for bringing this to my attention, I really appreciate it!