Z-Index issue on iOS using Material UI Drawer component

I am using the Material UI Drawer component in a project.

I am having a specific issue with an iPad which causes two issues as far as I can see: - Overlay is not appearing on top of the nav bar and body content - Drawer is not appearing on top of the overlay

From what I can tell this seems to be a z-index related issue; potentially related to the use of "transform: translateZ(0px);"

Here is the rendered html of the overlay:

<div style="position: fixed; height: 100%; width: 100%; top: 0px; left: 
0px; opacity: 1; background-color: rgba(0, 0, 0, 0.541176); -webkit-
tap-highlight-color: rgba(0, 0, 0, 0); will-change: opacity; transform: 
translateZ(0px); transition: left 0ms cubic-bezier(0.23, 1, 0.32, 1) 
0ms, opacity 400ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; z-index: 1200; 
pointer-events: auto;"><!-- react-empty: 149 --></div>

Here is the main div rendered html of the drawer:

<div style="color: rgb(255, 255, 255); background-color: rgb(0, 0, 0); 
transition: transform 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; box-
sizing: border-box; font-family: Roboto, sans-serif; -webkit-tap-
highlight-color: rgba(0, 0, 0, 0); box-shadow: rgba(0, 0, 0, 0.156863) 
0px 3px 10px, rgba(0, 0, 0, 0.227451) 0px 3px 10px; border-top-left-
radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 
0px; border-bottom-left-radius: 0px; height: 736px; width: 200px; 
position: absolute; z-index: 1300; left: -207px; top: 0px; overflow: 
auto; -webkit-overflow-scrolling: touch; margin-left: 50%;">

As you can see from the above, the z-index of the overlay is 1200, the drawer is 1300 and the nav element has a z-index of 1030.

The Drawer otherwise works perfectly in Chrome and Safari on Mac.

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