Floodlight Cam losing blocks of time

I have been aware for a few days now, that I am losing a lot of video feed. Some days a few unlinked minuets, others times hours. Just today, I had contractors out in the back and side yard with me, and neither of my floodlight cameras recorded any of our activity (really wanted to catch this activity for performance nd security reasons. Not to mention insurance reasons. After checking, it showes they went down again (way to often to be considered reliable andtrustworthy). And my backyard floodlight camera light is "flashing" like a strobe light. ? ? My Doorbell camera didn't catch any video either though it was supposedly up and running