Pictures cut during integration inside the app

[DDHEDL69]

Hi,
I developped a Web App that allow you to do forms of check ins and check outs for real Estate rental, from a Web Browser.
I use Pica to resize and integrate pictures inside the documents.
It has been working fine for about 5 years but recently, a lot of pictures are cut during integration, leaving the final image with 50-90% of the image with black squares.
It only happens on Android devices and apparen

tly since the last Update of Android...

Does someone have a lead on the issue please ?
I can't replicate the issue on my devices and don't know where to look..
On the image attached you'll see the issue.

Cheers