Had the same issue when installing my new Laptop (Lenovo T495s - NOICE! btw)
solution: just add “C:\Program Files\Steinberg\VstPlugins” as user vst directory in the live preferences. that’s it. by standard, only “C:\Program Files (x86)\Steinberg\VstPlugins” is scanned by ableton, thus finding only the 32 bit DLLs.
