VST instruments are NOT out of tune in itself.
If you’re a piano player every VST piano on itself sounds great. There are no wrong notes.
But if you MIX two or more VST instruments in Cubase, one can be out of tune against the other.
I made a backing tracks with Vintage Digital Tines, Tick Pick and Drum “the track sounds great”.
But I have to retune my guitar. (+20 cent)
FM E-Piano, Contrabass Solo and Drum “the track sounds great”.
But I have to retune my guitar again. (0 cent)
In a MIX with more VST instruments and there is only one out of tune, it just sounds somehow augmented.
For a long time I thought it was my low budget guitar and me.
I love making music, I think Cubase is a good DAW, the VST Instruments sound all very nice,
I want everyone to make great music.
Be aware, check the tuning of each VST Instrument you use.
Just kick me out again people from Steinberg if you don’t wanna hear me.
And I promise I won’t write anymore.