Describe the problem

I'm using the "Outline" view. The functions of the sketch are shown in the view when it is first opened, but when I edit the sketch the program outline disappears and is replaced with the message:

No outline information available.

To reproduce

The fault seems to be reproduced consistently by this procedure:

1. Select File > New from the Arduino IDE menus.
2. Press Ctrl+Shift+P to open the command palette
3. Select "Toggle Outline View".
4. Place the cursor at line 3
   You should now see the correct outline of the program.
5. Press Enter three times.
   The "OUTLINE" panel now shows "No outline information available".

Expected behavior

Program outline is updated in the "Outline" view as the sketch code is edited.

Arduino IDE version

Original report

2.0.0-beta.12-snapshot.4d8a7b8

Last verified with

2.3.6

Operating system

Windows

Operating system version

10

Additional context

The fault also occurs under conditions than the ones described in the reproduction instructions above.

I also encounter spurious results where outline components are missing or duplicated.

Additional reports

• Outline view contents disappear after adding code to sketch #124 (comment)

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details