Tera Term is working by connecting to the server via SSH.
emacs test.txt
If i do nothing, Emacs will not open.
Now, move the mouse to the edge of the screen and change the screen size when the habit appears, you will move to Emacs.
When connecting from Xwindow, move the mouse on the screen, and redrawing will proceed only at the locus of the mouse.
I have no idea what caused it. I googled and found no one with the same symptoms.
If i have any detailed information, thank you.