After Effects 17.0.2 is now available for download from the Creative Cloud desktop app.
This update adds support for 11.988 fps as a standard import/export rate (previously, clips imported or exported at this FPS rate may have a duplicated first frame). This update also includes several bug fixes and overall performance & stability improvements. It is recommended for all users.
Here is a list of fixed issues in After Effects version 17.0.2.