Hi, it sounds like you may be referring to a different plugin, as Simple Lightbox is not loaded in WordPress’ admin post editor at all.
If you do check out SLB in the future, please feel free to create a ticket on SLB’s official support forum should you experience any issues.
Thanks.
Moderator
Yui
(@fierevere)
永子
@ninaworks
I have moved this to support section, you are free to leave another review
if you are sure that you are leaving it for correct plugin
This ticket has been closed due to inactivity. If you are experiencing an issue with SLB, please provide more details and a link that exhibits the issue you are experiencing, and I would be glad to reopen the ticket and take a look.
Thanks.