There are serious supply problems with anything coming from China.
Major parts of China are still in hard COVID lockdowns, because they have a COVID zero policy, which does not appear to be working.
In fact there are major supply problems with all sorts of stuff, not just things from China.
I've been waiting a month for the local garage to get some replacement parts for my car, and AFIK they are supposed to be made in Japan.
Goodness knows when the supply chain will be back to normal.