I don't know the reasons, but I"ve found that DaisyDisk, GrandPerspective, and Find Any File aren't up to dealing with Catalina's two volume configuration, DaisyDisk, which can't even deal with my boot volume being the worst of the three; the other two run into issues with my clones.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
