How strange that this has started to happen. Do you have a case on your phone? If so, try charging it without this on to make sure it's not the case causing an issue.
Also, check the charging port for any obstructions that could prevent the charger from fitting properly.
Having exactly the same issue but can't seem to find a solution to the problem anywhere online 😕 like you say maybe wait for next update to see that fixes it 🤔