Nether portal death bug

So I have gone through the same nether portal over 30 times, then when I needed to go get supplies for a project I went through the portal, same as always, but this time I went through and started taking void damage, even though I was still standing on the netherack around the portal, I lost all of my gear and everything in my inventory, this happened two days ago and just happened to my friend, we are so mad because we can’t find a solution to this problem and this bug made us both die for the first time in the world after playing for over 100 days