Spectralayers 12 cache, bugs, crashes

After Unmix Song, only vocals on one 3 min. track (Cubase 14 ARA) cache folder created 820MB of files, which stay there even after exit cubase!!
Also, experienced few crashes. Very very unstable!
Tried Standalone app, same thing Unmix Song 3 min. only vocals selected, created 2.2GB of cache, which was deleted after exit, but 2GB??
High setting is fastest!? - Using GPU
Low and Balanced are SLOWER than High - using CPU only.