Unable to Place or Edit Text in Your Drawing
Issue
You cannot enter or edit text in your drawing.
Cause
You may have the MText Editor (MTEXTED) system variable set to something other than NONE/Internal.
Solution
Type MTEXTED in the Command line and press Enter.
When prompted to Enter new value, type a period (.).
The MTEXTED variable should now be set to NONE/Internal, and you should now be able to place or edit text.