Downgrading python3-cryptography from 38.0.4-1 to 3.4.8-2 is a temporary workaround.
- Bug#1026240: [deluge] crashes on load Lyndon Brown
- Bug#1026240: Acknowledgement ([deluge] crashes on load) Lyndon Brown
Downgrading python3-cryptography from 38.0.4-1 to 3.4.8-2 is a temporary workaround.