Yeah it's a known issue you'll have to relink sometimes. It depends on what npm version and OS you're using.
I have the custom page created /info.tpl
though I have this side everything is Views via an internal link ok and it will be displayed.
But when I press F5 when I'm on the side I get an error that the page is not there.
even if I the url shortcuts is the error?
I also noticed that some .. of hand scale CustomPages be deleted?
Are you using the custom-page plugin?
It seems rbeer fork might fix this, otherwise you have to copy the template manually as leksar says.
Also, if you're talking about hand coding the template in the public directory, those are always deleted on restart. The template in the plugin's template folder is what should be modified.
But I'm also having other issues with custom-pages, so I'm not even sure if that works tbh.