0001428: Complete Unity Crash if a popup is open when we change scene.

ID	Project	Category	View Status	Date Submitted	Last Update

0001428	NoesisGUI	Unity3D	public	2019-03-17 21:46	2019-04-02 01:43

Reporter	C4ustic	Assigned To	sfernandez
Priority	normal	Severity	crash	Reproducibility	always
Status	resolved	Resolution	fixed
Product Version	2.2.0
Target Version	2.2.1	Fixed in Version	2.2.1

Summary	0001428: Complete Unity Crash if a popup is open when we change scene.
Description	I have not tried this with an empty example project but hopefully it is the same there. NoesisGUI and the whole unity editor crashes if any NoesisView have a popup open when SceneManager.LoadScene("newSceneName"); is run. Closing the popup the same frame doesn't work either, the popup must have been closed for at least one frame to avoid the crash (or never opened). I'm opening and closing my popups from script with pupup.IsOpen = false/true; I think this was a problem before I updated to 2.0 too I just never saw a pattern until today when during the update process I run into this many times.
Steps To Reproduce	Create a menu with a popup. Open the pupup with script. change Unity scene with: SceneManager.LoadScene("newSceneName"); The whole Unity editor crashes.
Tags	No tags attached.

Platform	Windows

C4ustic 2019-03-17 21:56 reporter ~0005536	Maybe the repro wasn't as simple as I though. It looks like I have to open the popup the same frame as I change scene to get the 100% repro. I can also get the crash at other points if I have changed scene and then later on open a popup. I will do some more research.

C4ustic 2019-03-17 22:23 reporter ~0005537	I have two ways of getting the crash now, one is to run pupup.IsOpen = true; the same frame as SceneManager.LoadScene("newSceneName"); the other is to have the popup open then change scene and then change scene again back to the first one and open the popup again. To sum it up, bad things happen if you have popups open when you do scene changes. Opening the popup the same frame seems to be the best repro case. The workaround I use now is that before I change scene I find all NoesisViews in the scene and make sure they have all popups closed. Then I wait for a few frames, and then run LoadScene doing this seem to prevent the crash totally.

sfernandez 2019-03-18 22:19 manager ~0005540	Thanks for all the details, will take a look as soon as possible to fix it for the next release.

sfernandez 2019-04-02 01:43 manager ~0005588	We found the source of the problem and fixed it for the next release, thanks again for your collaboration.

Date Modified	Username	Field	Change
2019-03-17 21:46	C4ustic	New Issue
2019-03-17 21:56	C4ustic	Note Added: 0005536
2019-03-17 22:23	C4ustic	Note Added: 0005537
2019-03-18 22:19	sfernandez	Assigned To	=> sfernandez
2019-03-18 22:19	sfernandez	Status	new => assigned
2019-03-18 22:19	sfernandez	Target Version	=> 2.2.1
2019-03-18 22:19	sfernandez	Note Added: 0005540
2019-04-02 01:19	sfernandez	Status	assigned => resolved
2019-04-02 01:19	sfernandez	Resolution	open => fixed
2019-04-02 01:19	sfernandez	Fixed in Version	=> 2.2.1
2019-04-02 01:43	sfernandez	Note Added: 0005588