Cleaning of clipboard causes crash of all running android apps. Then android apps can not start till some text is not copied to the clipboard. Alien Dalvik restart does not solve this problem (restart of phone does).
EDIT: Update 11 solved this problem. :) THX Sailors
EDIT2: Issue exists again on 22.214.171.124 (confirmed on Jolla C)
EDIT3: Issue exists again on 126.96.36.199 (confirmed on Jolla C)
EDIT4: Issue has existed since 188.8.131.52 in Jolla 1, too