I'm having the same issue. It seems to be when I create andy app from template. I've tried with the Budget Tracker and Google Drive, the Alumni Association and Common Data Service... each one causes the desktop app to hang for around 5 seconds and then close.
I have just updated the desktop app to 2.0.590.
Session ID: 5c4687e5-048b-3b9b-a4ee-cb840a4970e5
Event Log:
App <App> terminated itself by calling terminateApp API. App details are as follows: Display Name:<PowerApps>, AppUserModelId: <Microsoft.MSApps_8wekyb3d8bbwe!App> Package Identity:<Microsoft.MSApps_2.0.590.0_neutral__8wekyb3d8bbwe> PID:<4708>. The API was called from the context of the following HTML document: </default.html>. Error object passed to terminateApp carried the following details Description:<>, and Stack Trace:- Error: Unable to process binding "template: function(){return { name:showAppCreationVideo ?'waitDialogContent_video':'waitDialogContent_animation'} }"
Message: Unable to process binding "attr: function(){return {src:appCreationVideoUrl} }"
Message: The specified module could not be found.
at Anonymous function (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:86:451)
at b (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:9:345)
at a.d.attr.update (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:86:305)
at Anonymous function (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:72:286)
at z.Pc (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:51:330)
at z.Qc (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:51:126)
at z.aa (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:50:477)
at a.B (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:49:37)
at Anonymous function (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:72:271)
at q (ms-appx://microsoft.msapps/openSource/unmodified/knockout/knockout-3.4.0.js:11:244)
.