Kleopatra-2.2.1: Searching on key servers crashes kleopatra

If searching for modified or new keys on key server, Kleopatra crashes. Sometimes it do work for one or two searches (don’t close the search window!) , after that it stops responding.

Kleopatra must been hard-killed:
pskill gpg-w32spawn.exe
pskill kleopatra.exe

Any hint about this behaviour?

(Win7prof-64b)

Thanks about the report.
One of the next steps would be to try to file a problem report and get it more qualified.
See http://gpg4win.org/reporting-bugs.html

Maybe enabling the Kleo diagnosis output helps.