On Safari, sometimes Geometry Dash doesn't draw all of its sprites

[BryceLTaylor]

Expected Behavior

All sprites get drawn every time (when they're supposed to).

Actual Behavior

Sometimes when you load this project: https://llk.github.io/scratch-gui/develop/#105500895
It won't show all of the sprites. Usually the button that picks the level doesn't appear. Once it was the texture for the background that didn't draw.

One time, the variable monitors flickered, which I think is the same issue.

This only happens on Safari. On Chrome, all of the sprites constantly draw.

@thisandagain suggested it might have something to do with Memory Pressure.

Steps to Reproduce

Load the project
Run it
Note: some times some of the sprites won't load.

Sometimes it works just fine. Often after running it a number of times. When I restarted Safari once I started seeing the bug again.

Operating System and Browser

Safari on Mac

[Mr-Dave2]

The steps below were repeatable (for me) and always produced this result (after clicking the GF).

Start Safari with just favorites showing.
History/ Clear All History
Enter URL https://beta.scratch.mit.edu/#105500895
Wait for initial project screen to show up.
Click the GF. The picture shown above is what I always get.

Mac IOS 10.11.6 Safari: Version 11.1.2

It 'feels' like Safari is starting the Scratch "web page" before all of the assets are completely loaded with the intent of replacing stubs with the actual content as it arrives (as we see all the time with other web pages where the content shifts around until all graphics are loaded) but Scratch never replaces the stubs with the actual (late arrival) assets.

Clicking "Reload this Page" consistantly allows the project to run with the normal sprites shown.