I’ve ran into this problem where all of my new projects are missing their launch buttons. My old ones still have it, but I had even lost it on one I was currently working on.
I am working on a mobile game and need to constantly be launching this on my phone to see how things are turning out and how my UI looks, so its very important I get this back.
I have tried closing and reopening the toolbar, changing the size of my icons back to large, and restarting the program. None of these have worked.
Please check if you are changing bShowLaunchMenus to false in any of your ini files (Game or Saved config directories) as that variable decides if the launch button should be created or not. This variable is set to true by default in BaseEditorPerProjectUserSettings.ini (under the [/Script/EditorStyle.EditorStyleSettings] category) and isn’t changeable through the editor interface.
I had to go and copy the config file from 4.13 and paste it into 4.14, and delete the one already there.
Even though the 4.14 file said the bShowLaunchMenus was set to true, it was somehow corrupt and didn’t show, but adding in a fresh, default config fixed the problem.
From there, I modified to default again, but much more carefully this time, and everything is working now.