Default save extension is "Normal Text" but Notepad++ is saving without an extension

When I try to save a file, the default extension is All types (*.*). It basically saves it without an extension, for example, just new 1 instead of new 1.txt.

“Default language” option in Settings → Preferences → New Document is set to “Normal Text”.

I Googled and saw that you can change the default save extension in langs.xml.

I've opened it but as far as I've understood the .txt file extension is already set as a default extension:

<Language name="normal" ext="txt" />

What do I do to make the default extension .txt?

Screenshots:

The “New document” settings menu:

Trying to save the file and it wants to save to All types (*.*), not as Normal text:

Version v7.8.7 of Notepad++ fixed this issue, so try updating Notepad++.

If you need to use an older version of Notepad++ for some reason, you can avoid this issue by switching to the older save dialog prompts (this worked on versions 7.3.2, 7.3.3. and 7.4.2):

Settings->Preferences->Default Directory->uncheck Use new style save dialog…

(Source) Posted by (Claudia Frank)

New style save dialog has to be set to disabled for file extension suffix to work.

1. Menu » Settings » Preferences
2. "Default Directory" tab
3. Uncheck "Use new style save dialog (without file extension feature)"