cmd+A does not work in the search results

Hello!
Audirvana 3.5.8 (also 3.5 and later), macOS Mojave 10.14.4
cmd+A (select all) does not work in the search results. I can’t drag and drop more than one album from search results to the desired playlist.
Is it my personal bug?
Also I can’t add the new manual playlist directly in the folder.
Please help me with the both problems.