When I try to open the .png file in the resource list for an activity using the App on iOS, I get an error and it won't open.  I can access it fine via a web browser.  Here is a video of the issue:

https://drive.google.com/file/d/16GVVp--80XPPGLMne4-MOSynPd8xlFqG/view?usp=drive_link