The unable to find locator problem seems to be gone with the update of che to 7.34 base, the two remaining test failures we have are:

• When the check application available is executed too soon after the project build and run and the route has not been exposed yet

• When the pre-loader in the preview widget blocks the underlying content.

Suggested fix:
Add a try-catch block to check for error.TimeoutException, refresh the preview widget and try to check for the application once again.