Indoor chime when Night Vision activates?

Hi, I am having a weird problem with my Ring Pro. I have had it installed for several years now, but recently the indoor chime has started to ring nightly when the sun goes down to the point that Night Vision is enabled. I can't say for certain when this started - sometime in the past 3 or 4 months. Has anyone else seen this sort of thing and is there any mechanism for troubleshooting it? Thanks in advance!