Factorio Forums

Bug: copies of a blue print are added to the Blueprint Library. Another copy is added for each existing copy when the bug is triggered. I didn't realize how bad it was until last night when I found dozens of copies of some blueprints in books that I don't look in often.
I suspect the problem is related to playing the same steam-sync save on two separate computers frequently or more people would have reported this. Blueprints in my character inventory whether in a book or not work fine. The problem is only in the BluePrint Library on the right-side of the panel and affects some but not all the blue prints whether they are in a book or not.

Both computers are running Windows10. Screenshots attached.

Describe exactly step by step what you do for the bp to duplicate.

Duplicate of this: viewtopic.php?f=182&t=48977

Klonan thanks for the reply! My problem looked very similar to the linked post but since it called out different OS I wanted to make sure it was the same.

To answer the first reply:
AFAIK starting the game and opening Bluepring Library are all thats required to repro the problem.

I didn't fully realized the difference between the right/left side of the Blueprint Library before encountering this problem and only used the right-side previously. After adding blueprints to the left side yesterday I found it does not have the same duplication issue as the right-side.