Hello,
Synplant1 missing after install version 2 ???
It seems the new installation overwrites the v1 ?

Not happy with this!

Used Synplant within a lot of different projects with different DAWs, so I lost hours and hours of work ?
Any workaround?

You might take a look at the https://soniccharge.com/download page and open up Old archived versions to install an older version of Synplant, I guess.

Besides that: Synplant 2 opens old projects / thus old patches in compability mode with the same sound. An upgrade to v2 is just 50$, which I consider totally worth!