Can't load my old diagrams when starting open dbdiagram by a link

Follow my steps:
Step 1: I created a new diagram called A then saved it. I had a link of this one.
Step 2: I continued to create diagram B, then I saved it. I had a link too.
Step 3: I entered my diagram B by that link. After that, I wanted to switch diagram A but there was no diagram loaded.

Hi @Tai_Phuong,
I’m Khoa from the dbdiagram team. Thank you for your report on this bug.
We are currently working on this and will release a patch as soon as possible.