After installing the 64 bit version of Fiddle, it will run for a bit (enough to get through some of the tour) nd then prompt that there is an update available. Clicking either restart or later will close the application. Then when trying to reopen, it will pop up a message saying the image is valid, but for a different machine type. For the record, my system info states: 64-bit operating system, x64-based processor.
Might be related to https://github.com/electron/update.electronjs.org/pull/91
@royal-wisdom could you happen to drop a screenshot or screencap of what's happening?
I was able to reproduce this on my Windows machine:

@royal-wisdom Were you installing the latest version (v0.20.0) of Electron Fiddle?
As a workaround, could you try:
1) Deleting %LOCALAPPDATA%\electron-fiddle
2) Installing the latest release (v0.20.0) from GitHub Releases
@royal-wisdom Were you installing the latest version (
v0.20.0) of Electron Fiddle?As a workaround, could you try:
- Deleting
%LOCALAPPDATA%\electron-fiddle- Installing the latest release (v0.20.0) from GitHub Releases
The version is the v0.20.0, but the 0.19.0 version is also showing up. I don't think that should be an issue though, would it?
Also, thank you for the help and work you have put into figuring this out.
Edit: Just opened up the v0.19.0 and it seems to be working/stable.
@erickzhao 0.19 is still in README.MD

@dospolov Thank you for the heads-up! I've opened #593 accordingly.