I also encountered this issue just now. Basically "tomb open" was not working because of this, until I rebooted.
It gave an error message about a module not being loaded, and from there to dmesg I found this issue. The information contained in this electronic mail is confidential information intended only for the use of the individual(s) or entity(s) named. If the reader of the message is not the addressee (or authorized to receive for the addressee), you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by reply e-mail and/or by telephone and destroy the original message.
