Elements disappear after an application is minimized

[MichaelHipp]

I'm working to automate a 3rd party Windows application that is based on Chrome. I'm guessing it is an Electron app, but not sure.

I can do elems := cUIA.FindElements({}) to get the elements and the element I need is there. But once the app has been minimized and restored the list I get from that call shrinks by about 2/3rds. And the element I need is no longer listed.

If I stop the app and restart it, the elements are there again, until minimized. Tried many different things but it's as if those missing elements just aren't there even tho they are still visible on the screen and the app is fully functional.

Any suggestions?

[Descolada]

Hello,
I haven't encountered such an issue with Chromium-based apps before. Are you able to share the application for testing purposes, or provide a similar situation that reproduces the issue?

I'm gonna shoot in the dark a bit, but perhaps you need to coerce the app into refreshing the UIA tree somehow? Have you tried resizing/maximizing the app to try and fix the issue? Does inspecting the element with UIAViewer cause the element to reappear in the tree?

[MichaelHipp]

Thank you for the response!

Unfortunately this app is part of a large vertical-market system and I can't legally distribute it and neither would it run outside it's environment here.

The resizing/maximizing suggestion works like a charm! I just do the below and all the elements are now there.
WinGetPos , , &XSize, &YSize, "ahk_id " hWnd
WinMove , , XSize + 1, YSize + 1, "ahk_id " hWnd
Thank you for that!

The UIAViewer shows all the elements always present as expected where the cUIA.FindElements({}) call does not. (Nice tool BTW.) Hope that offers some clue.