Security camera flashing

I’ve found similar queries here, but none quite like this.
I have two security camera controlled by one light switch. One camera works perfectly, the other flashes whenever motion is detected. No video is recorded.
How do I test/resolve this?
The cameras are 25’ above ground and, if necessary, I’ll have to hire a contractor for any work requiring a ladder

Anywhere I can ask this and get a reply?

For many of our Cameras, the installation height recommend is around 9 feet high. This can vary, however, exceeding this height by too much can impact functionality. Here’s our Help Center article for proper positioning, for example.

When it comes to power related concerns or wiring, this is best handled with a qualified electrician. While our support team cannot troubleshoot power with you, they can take a closer look the Camera. Please give our support team a call at one of the numbers available here. If you are outside of the US, please visit here to see how to contact support.