current develop branch breaks on MacOS, showing black window

[Phantato]

Describe the bug
On commit id 68c67da (currently top of develop), I ran

❯ cargo run --example showcase

which gives me a black window. then I use git bisect, find out it's the top commit causing the problem.

My OS is macOS 12.2.

To Reproduce
Steps to reproduce the behavior:

1. Git checkout to 68c67da
2. cargo run --example showcase
3. If compile failed due to missing symbol, try to add a orbtk/build.rs and manually link against CoreHaptics
4. See error

Expected behavior
Showing normal examples

Screenshots

Desktop (please complete the following information):

• OS: MacOS
• Version 12.2

Additional context
I'm willing to help, but it currently gives no more info in console.

[grebii]

same on windows tbh

[slondr]

I'm seeing the same thing on Linux (X11)

Going back to the previous commit also solves it for me.

[rzerres]

This bug should be fixed with latest commits in development branch.
Please could you try and give some feedback? Thanks