Notepad++ 8.6: user extensions not saved

[Norman Eisenherz]

Style Configurator does not remember user extensions outside of current session.
Installed an old version (7.5.8) for testing purposes, added the same extension (lua + script), it was saved and restored in next session, resulting in proper syntax highlight.
Is the issue known?

[Brad Stone]

I have the same issue. I go into the Style Configurator, select the style (HTML in this case) then enter my custom extension, save, exit, reopen and the setting isn’t saved when I go back into the Configurator.

Notepad++ v8.6 (64-bit)
Build time : Nov 23 2023 - 16:58:44
Path : C:\Program Files\Notepad++\notepad++.exe
Command Line : “C:\Users\bvsto\AppData\Roaming\Notepad++\themes\DarkModeDefault.xml”
Admin mode : OFF
Local Conf mode : OFF
Cloud Config : OFF
OS Name : Windows 11 Pro (64-bit)
OS Version : 22H2
OS Build : 22621.2861
Current ANSI codepage : 1252
Plugins :
JsonTools (5.6)
mimeTools (2.9)
NppConverter (4.5)
NppExport (0.4)
NPPJSONViewer (2.0.6)
NppXmlTreeviewPlugin (2)

[PeterJones]

@Norman-Eisenherz , @Brad-Stone ,

it is fixed in the v8.6.1 Release Candidate available from the announcement thread.
See point#3 in the announcement: it was a “regression” in v8.6 (which meant it was working in v8.5.8 then accidentally broken in v8.6) and is now fixed in v8.6.1.