Comment 9 for bug 1507190

Additional information for fixing the "USB unplug problem" with release SP09 you can see in manufacturers forum (unfortunately in german): https://forum.reiner-sct.com/index.php?/topic/3066-pcscd-stuerzt-ab-beim-entfernen-des-lesers/
One user has announced the trigger for the problem was an missing "libusb_exit".