I welcome the rapid fix for the self-update problem of v1.64.1.
The first post in this thread, in its first few paragraphs, treats version 1.64.1 and version 1.64.2 as if those two releases were one. That could mislead.
Perhaps it will help someone if I note here that, on Linux at least, one can perform a 'manual update' thusly:
sudo -v ; curl https://rclone.org/install.sh | sudo bash