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] What happens with more than 3 monitors?
I received a question from our IS team:
How many monitors\displays will work with the Screensaver?
Right now we are seeing anything more than 3 has issues with the monitors going to sleep mode and laptops not functioning correctly when trying to wake up.
I'd appreciate if someone can share an answer for this, thank you.