Suddenly found that the two words of a two-cent coin are different. Please explain?

In the past, there were two horizontal characters on a two-cent coin or a two-cent bill. Both kinds of writing can be used, and there is no wrong coin. If it is the wrong coin, the bank will immediately withdraw it and stop issuing it after issuing it. I have also seen the column "Oriental Shopping" on TV many times and recommended the third set of RMB collectibles. I also said that this two-yuan coin is the wrong version. I think this is very interesting. The formal propaganda media is so misleading. Pathetic.