Diagram missing shapes in View mode

[ane-gabriela]

I've encountered the following issue:

1. I've added some shapes to a diagram
2. Saved the diagram
3. Got the following result in view mode

This issue doesn't reproduce every time and I can't find the exact steps that lead to this issue but here is the the diagram used: https://up1.xwikisas.com/#gH3PMq6raUnmwFgwhjYWkQ

What can be seen in the browse console: https://up1.xwikisas.com/#54zSlHTpkjdfMRBNhoftUg

Environment: Windows 10, XWiki 12.10.5 and 9.11, Chrome 89, Diagram Application (Pro) 1.16-rc-2

[ane-gabriela]

On 9.11 - I've added Shadow to some some shapes and after Save & View some of the shapes disappeared in View mode.

Edit mode:

View mode: