Not sure if someone brought this up already but I'm on 19.0 Beta and I'm unable to copy paste transitions. Hope this can be fixed.
Davinci Resolve 18.6 Apple M1 Max 10-core CPU, 32-core GPU, 16-core Neural Engine // 64GB RAM // Ultra Studio 4K Mini // LG CX55 OLED // ASUS ProArt 32UCX