Lightbox Plus (The settings disappear)

Hi all,

Here is a strange issue (I’ve not found the solution on the web).
Sometime (perhaps 1 time in 2 months), all the Lightbox Plus (2.2.2) settings disappear without any action from me (update or something else) !
So from now, I keep a database backup of the option name field lightboxplus_options, it allows me to restore quickly my settings.

BUT, is someone encounter this issue ? If yes, what is the solution ?

Thanks.