How to get rid of the second tab in Arduino IDE 2?

Question

For a reason unknown to me, Arduino IDE 2.0.3 opens two tabs with the same name for this sketch. I'm not able to reproduce how to get into this situation.

Changes in one tab immediately changes the other tab as well.

How can I get rid of the second tab?

Duplicate tab

Things I tried:

• File / Close (Ctrl+W) closes the whole sketch, i.e. Arduino IDE exists.
• The usual key combination to close tabs (Ctrl+F4) does not work either.
• I deleted all %AppData%\Local\Temp\.arduinoIDE-unsaved*.gfv2 folders
• I deleted all %AppData%\Local\Temp\arduino-sketch-* folders
• I deleted all %AppData%\Local\Temp\arduino-language-server* folders
• I deleted all %AppData%\Local\Temp\arduino-ide2-* folders
• I used Streams to check the INO file for alternate data streams
• I deleted the folder %UserProfile%\.arduinoIDE

Maybe interesting: when I rename the sketch to HelloWorld2.ino, it opens only one tab. If I rename it back, I have two tabs again.

When I change the preferences to show the files in Sketchbook view, I only see one file: Sketchbook view

_{The other sketches have been created when trying to reproduce the problem. They are not affected}

The tooltip which shows the full file name is identical on both files:

Identical tooltips

The Registry does not contain suspicious information. I found only one occurrence of HelloWorld in

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\TypedPaths

• timemage: Can give exact instructions on reproducing this? I downloaded 2.0.3 (though on Linux) and tried creating and opening essentially blank sketches in various ways and didn't observe this problem.
• Thomas Weller: @timemage: unfortunately I can't (yet). I have also created a virtual machine and wanted to reproduce it, but it didn't happen.
• Thomas Weller: @jsotola: the content changes in both tabs (seemingly instant)
• Thomas Weller: @jsotola: updated the question: it shows only one file
• Thomas Weller: @timemage: I have recorded a video when this issue occurred. From that video I can see that it started with a duplicate file name called sketch_dec27a.ino i.sstatic.net/IgHxa.png However, the video just shows this right after starting the IDE, nothing done.

Answer 1

How can I get rid of the second tab?

• Press F1,
• Type: View: Reset Workbench Layout into the Command Palette,
• Press Enter,
• IDE reloads.

If it does not help, get the layout data from the logs.

• Open the DevTools with Ctrl/⌘+Alt+I built-in command,
• Open the Console if it's not opened with Esc,
• Right-click in the console and Save as...,
• Share the data with the devs.

For example:

{"version":5,"mainPanel":{"main":{"type":"tab-area","widgets":[{"constructionOptions":{"factoryId":"code-editor-opener","options":{"counter":0,"kind":"navigatable","uri": ...

• Thomas Weller: Absolute abuse of the F1 button for such a purpose, but anyway, resetting the workbench layout did it.
• timemage: Seems a perfectly good use to me. =) Upvote.