@Omgitstony asked some really good questions. the answers could explain why this happened. Additionally, what is your sensitivity settings? Also, are you using a detection zone? What firmware do you have installed (are you a beta user?)?
Regardless of the answer to all those questions, I have to add to confirm that I have recently had missed event recordings the last couple of days on my VDB and my front V3. I have Cam Plus on both of them. But the last few days, people have come up to my door, and my Eufy alerts me, but I somehow never got a Wyze alert, so I go back and check my events history and Cam Plus didn’t record any event at all (My sensitivity is VERY HIGH and covering my whole yard too, so there is no way either of those were the issue, and it almost never missed events before, so this is some new recent bug…though I am enrolled in the beta program), not even motion or anything. I had to look at the SD card to find the person coming to the door.
There is definitely some weird bug recently acting up and causing missed events lately. Others have shared recent instances of this, and I can confirm it has been happening to me just this last week, and it is not normal. Normally it has really high accuracy and reliability for me for the last several months, but this week it has totally missed some that are completely unexplainable. I would’ve submitted the event, but the problem is that it didn’t record any event to submit…hard to submit an issue about a void that is not submittable or verifiable…but I am guessing this OP’s account is because of the same glitch I’ve been experiencing recently with missed events (despite having cam plus).