At the present time, iScreensaver Designer 5.2 provides support for macOS 10.13 High Sierra, but there are some functional limitations.
Please read the 10.13 High Sierra Tech Note
as well as the Release Notes
Due to changes made by Apple, iScreensaver Designer version 5.2 does not currently support macOS 10.14 Mojave.
Please read our forum post
for the latest updates.
[Solved] iScreensaver Designer 4 - NSInternalInconsistencyException when open Preview window
I am testing out the iScreensaver Designer 4 before committing to buy a license. I have created a screen saver with only images, built an installer fine, and saved the project. However, when I re-opened the project and tried to turn on Preview window, I got the following error:
A Cocoa NSInternalInconsistencyException was not handled: NSScreen reconfig must only happen on the main thread.. Please report to the application developer. The application will quit now. (use NSExceptionMBS class to catch this exception)
Any clue what I might have done wrong?
I am running iScreensaver on Mac OS 10.10.5