Additionally, because you mentioned Aqara sensors, what does the rest of your Zigbee network look like? This post is a bit old now, but as far as I know it's still the best advice on how to get these to work reliably:
Of course, if you haven't changed anything recently, it shouldn't have affected these, but my takeaway would be that if you're not using only known "Xiaomi-friendly repeaters," it's a risk give that Zigbee can re-route on its own at any time (though I've personally observed Xiaomi sensors to rarely do this themselves).
