Font mixed in viewer

Hello!

Often when I view a text file in viewer, fonts are mixed as in the following picture. It happens on 2 different PCs.

Has anyone experienced the same?

X.

The main font that the viewer is configured to use probably doesn't have all of the characters in the file you're viewing (which has some non-ASCII characters) so font linking is being used to display them instead of blanks or boxes. Select one of the "Unicode" fonts and it should stop happening.