I've just been following James Ritson's video on the new Divide Blend Mode. Worked wonderfully until I reached the Lighting Live Filter; Divide Blend Mode element. Screen shot to illustrate the issue. And I tried with and without hardware acceleration in Preferences. No other applications open except YouTube
Windows 10 Home: processor Intel Core i7-8700; 16.0 GB; Nvidia GeForce GTX 1050 Ti