Alixnight

@Gabe Thanks for replying to me. I've been quite busy otherwise I would have replied sooner. I've attached the video you asked for. Also, as I recorded this I found the exact step where the break happens. It's when I undo past the dpi change. broken_symbols.m4v

@GabrielMThanks for the reply. All I have to do is change the DPI of the file in the documents setting panel and the line formatting in my symbols bracks. I included a test file with my symbol in it so you can try out what I did. I've also included a file with the symbols already broken. test_symbols.afdesign test_symbols_broken.afdesign Edit: Oh, I almost forgot. This happens on Windows and iOS.

I know this topic is from last year but I have a solution and what causes desync of symbols for me. First, what most commonly causes desync of symbols for me is when I change the DPI of the file and resize it. Specifically this usually causes any line settings such as thickness, style, or otherwise to lose sync. What I've found that fixes this for me is I make the changes I'd like to propagate across the symbols to the element that's not syncing then I duplicate that element and delete the original. The duplicate gets propagated across all the symbols and includes your changes and will continue to sync from that point forward. So any changes you make it to the object will now sync across all the symbols. I thought I'd post a reply in case it could help someone. I know I've spent hours trying to figure out a fix.