Unable to adjust v3 back to v2

When you transfer the file back to v2, you can’t save the file.

You need to remove things that are not compatible with G2.

Why do you need a v2 file?

Thank you for your answer.

Thank you for your answer. I just found this by chance. I’m not sure why, so let’s take a look at the feedback.

In addition, I would like to ask, why do you keep v2?

The main reason is that I used v2 to solve the problem of localized naming before, and later after learning, I found that v3 can also do localized naming. A solution to my problem has been found.