I searched for "Sound Gui" and found a lot of reports which describe the same issue I have. BUT all of them are resolved.
I'm playing the version 1.8.8 and everytime after I'm closing a GUI that includes a sound like the CHEST or the DOOR and closing a second GUI a short time after the first one the sound of the first GUI get repeated.
Example:
open chest -> close chest -> hear the sound of closing chest -> open furnace -> close furnace -> hear the sound of closing chest again
sorry for my bad english skills. I hope you understand what I have written.
Thank you for your report.
However, your ticket has been resolved as a duplicate.
This issue has been linked to the original bugreport: MC-35714. You can find or add further information on that report.
Please search before reporting any bugs, as it's likely that one exists already.