We are aware of a stutter-like behavior when rotating structures in Mercury. We are looking into this and will release a patch to address the issue. In the meantime, we recommend moving the mouse in small increments and stopping between or just moving it slowly. Reverting to the 4.3.1 (2020.0.1) version of Mercury is an option. Download links can be requested from email@example.com
Need more help?Contact CCDC Support online, or by email.