This question already has an answer here:
Emacs 26.1, Windows 10 (64 bit)
I open file
trace.log. User occur to find text. Save occur buffer to file
NXS_ETH.txt. Do some manipulations. See screenshots. But I can't edit EDITABLE file.
File is EDITABLE (not read-only).
I press "a" but char "a" not show in buffer. I get message on minibuffer:
a is undefined
What is this?
To fix this I reopen file
NXS_ETH.txt and then success edit buffer.
Why I can't input any text after save occur buffer to the file?