@avandecreme I compiled patch-2 branch of this repository https://github.com/adgoncal/openseadragon/ but unfortunately it doesn't solve the problem in safari. I still wasn't able myself to dive into the code. I'd try tomorrow or tonight. I'd like to ask you however if you think that the images disappearing it's most probably the effect of them getting pulled out of the canvas for some reason or a lower level rendering issue. From where do you think that I can start to debug this behaviour?
@iangilman@avandecreme I appended the sketchCanvas to the DOM. This example is based on OSD 2.2.1. By testing with safari it'clear that images are correctly added to the sketchCanvas and disappear only from the rendere canvas. https://differenthood.duckdns.org/confproduct/196