For the specialists and long time users of MSI:
I'm using Symphonic Instrument 64-bit (UVI workstation) as VST plugin with Ableton Live in Windows 10. Everything works fine in this setup BUT when I try to open an older Ableton live session with the former 32-bit Symphonic Instrument (so without the UVI workstation) it doesn't find the plugin

So, does someone knows maybe a faster way to solve this problem? thx J