Not sure if I should also mention this, but I had the same issue at 80% UI scale, and increasing it to 100% fixed the issue.
Running a fresh install of v1.8 also (It wouldn't boot after updating) on macOS Mojave 10.14.6; MacBook Pro 2015 with Radeon Pro 450 2GB and Intel HD Graphics 530 1536 MB graphics cards.
Also using 1440x900 resolution.