I have noticed that after the 1.14.6 hotfix that Upon my death, All of my accumulated Experience disappears. 

By this, I mean there are no experience orbs available for me to collect at the location of my last death. I have not been able to get any evidence of this occurring, however, I think it has to do with unloaded chunks/render distance.

I do not know of this os a common issue or whether this is its first instance.