First encountered the situation when recording a multicorder 7 cameras. The situation was very extreme in preparation for the event. The bottom line is the following: on the cameras there was not a very reliable SDI contact, as a result of which from all 7 cameras all the video (4.5 hours) was recorded only 3. During recording, it was not possible to determine if the multicorder stopped recording some streams.
Is there any possibility of any indication of this kind of error or automatic recording recovery (when connecting cameras via SDI) in case of an incoming signal interruption. We use blackmagic boards

I understand that such technical problems should not be ideal, but the situation is different (for example, hooked the cable or when shooting in the room, the cable was interrupted ... or other factors), but there is a possibility of minimal losses in this case ????