I'm not sure if it's the latest update or not, but multi-line text blocks on Windows/Chrome are not available any longer either in schematic or PCB layout.
I've tried Enter and Shift Enter and Alt Enter and using /n or \n ... none work. I can, however, write the text out in NOTEPAD and copy and paste it into a text block.
But this seems a poor work around.
Let me know if a fix is in the works.
Thanks
Chrome
76.0.3809.100
Windows
10
EasyEDA
6.2.35