The issue reported is at Apple’s end.
Hence, Apple is recommending to update macOS to 10.15.x version in order to resolve this issue.
Please update your macOS to Catalina. If you still face this issue in macOS 10.15 do add your comment in this thread.
Adobe InDesign team
An error occurred while saving the commentCasimir Fornalski commented
Screen drops out and goes black whenever I move primary text frame with text inside. Text has a paragraph style with "Align all lines to baseline grid" turned on.
Running InDesign 2019 on a 2018 MacMini, Samsung U32J59x 4K UHD monitor connected via HDMI 2 cable.Casimir Fornalski supported this idea ·