SSL works only the first time

It’s in 2.0.6.100 but you must be willing to run Canary. Beta happens when enough fixes accumulate.
It’s very unusual to have only one Canary after so long, but that’s how it is, given recent participation.
Duplicati progress depends on the community volunteers for code, test, documentation, support, etc.

So there’s the code and a Canary. What unfolds going forward continues to depend on the community.