App loading in Studio incredibly slow today - 17 minutes!

[JonathanGibbs]

Just waited 17 minutes for an app to load in Studio. Using Edge, Session ID: f3523545-f452-4899-890d-8983744d148f

It's quite a large app but this is ridiculous. Last saved in PowerApps version 3.19104.33. I've just made a minor change and saved again to bring it up to the latest version, but it still looks to be re-loading at a snail's pace..

I see there was an outage earlier today: is this to blame?

[PowerAddict]

Hi Jonathan, 

Is this resolved now or are you still facing it? 

Thanks!

[JonathanGibbs]

Sadly no - just tried on Chrome this time (07:55 UTC), Session ID: 3b6a9751-f13e-4326-8318-d3320b6f5321, took about 18 minutes. Looking at Task Manager I can see the network activity level is really low - about 0.05Mbps.

[PowerAddict]

Did it slow down recently? Any specific screens where the delay is more? Any more details about the app would be very helpful.

[JonathanGibbs]

The app's datasources are 33 SQLServer tables/views, 16 Flows, 1 AzureBlobStorage. 12 screens, about 500 top-level controls in all (plus others within galleries, etc.).

So quite big, and as it has grown in size the time taken to open in Studio has lengthened a bit (up to about 20 seconds or so, which is not a problem), but there was a step change yesterday to the current 17 minutes. Saves take about 4 minutes, too.

I've tried the usual steps - 3 different browsers, 2 different internet connections, cleared caches. Also tried restoring to a (smaller) version from 3 days ago, in case additions made in the last day or two have caused the problem, but this version is just as slow loading. Even restored a version from 9 days ago - same.

This is the biggest of the apps I'm working on, but the next biggest - similar characteristics - is also pretty slow, taking about 3 minutes to load.

Are there any particular points to look for that might cause loading problems? types of connector, onstart routines, graphics, whatever..? Should I just raise a support ticket?

The app runs perfectly well, by the way - the problem is opening for edit, not for play.

[JonathanGibbs · Accepted solution]

Since 3.19112.26 it's been loading in under a minute again. Shame, since I'm half way through a complete rebuild!