Cameras stop recording when it should

Repetitively not recording any video for a short time when it should. Attempting to document improper activity at a specific itime. Records before and records after. Only proof is I physically witnessed to what should be recorded but isn’t. Yes, I have checked my equipment for working properly. Three cameras all do not record for about short time during the same time frame…sometimes it is a few minutes up to around thirty minutes then it goes back to normal recording. So what is being used to block the recording.

Is the event you are trying to capture very brief and are your Ring cameras battery/wireless? For the battery devices there is a very slight wake up time compared to wired devices which could be what is happening here if the even you are trying to catch is very very short.