Description:
In Impress I get a crash when I choose an object, open the window "Animation" (via "Insert Animated Image"),  click on the icon "Apply Object", click twice on "Create" and close the window.

It crashes always, but I can't see a pattern, which kind of crash happens. It's either:
a) Impress crashes without Document Recovery window. You don't get a "Send Crash Report" window at a restart of LO.
b) Impress crashes and freezes the Document Recovery window. After that the process soffice.bin has to be killed with the Task Manager. (If you restart LO after that, you get a "Send Crash Report" window!)
c) Impress "thinks" it crashed - that means, it does not crash instantly after closing "Animation" window. But if you close Impress with(out) saving, Impress opens the "Document Recovery" window - which is empty of couse if you have not saved - and restarts LO. (No "Send Crash Report" window)


A crash report from a c) crash:

crashreport.libreoffice.org/stats/crash_details/e950ca0b-9831-457c-b831-d2f83d203087

I attach short screencasts of the issues.


Steps to Reproduce:
1. Start Impress 
2. Choose object (like "Click to add Title" textbox) or create one first (like a rectangle)
3. Open "Animation" window (Insert Animated Image)
4. Click on "Apply Object" icon (on the left below "Image:")
5. Click twice on "Create"
6.  Close "Animation" window
Either you get the crash, that I described as a) and b)
or go on and
7. Close Impress with(out) saving
and get crash c)





Actual Results:
Impress crashes either at closing "Animation" window or at closing Impress with(out) saving

Expected Results:
Impress crashs not.



Reproducible: Always


User Profile Reset: No



Additional Info:
It seems to be a regression. I can provoke the issues with 6.1, but can't provoke them with 6.0.

Crash with LO 6.1
Version: 6.1.0.3
Build ID: efb621ed25068d70781dc026f7e9c5187a4decd1
CPU threads: 4; OS: Windows 10.0; UI render: GL; 
Locale: de-DE (de_DE); Calc: CL

Version: 7.0.0.0.beta2
Build ID: 00(Build:0)
CPU threads: 4; OS: Linux 5.7; UI render: default; VCL: kf5
Locale: en-US (en_DE.UTF-8); UI: en-US
Calc: threaded

Version: 7.0.0.1.0+ (x64)
Build ID: 74d3471e74478a18c5a54ed4e9be83a5c0aadd8b
CPU threads: 4; OS: Windows 6.1 Service Pack 1 Build 7601; UI render: Skia/Raster; VCL: win
Locale: de-DE (de_DE); UI: en-US
Calc: threaded

Does NOT crash with LO 6.0
Version: 6.0.5.2
Build ID: 54c8cbb85f300ac59db32fe8a675ff7683cd5a16
CPU threads: 4; OS: Windows 10.0; UI render: GL; 
Locale: de-DE (de_DE); Calc: CL