Hey, so I found this quite some time ago, I basically shared my custom toolbar on the Click Converse Discord server, and apparently it wasn't loading for anyone who tried to import it
Previously on older builds such as 293.10 it worked, even on heavily edited toolbars, I tested it myself because I had to move to another PC recently
Here is the toolbar that wasn't working: Please login to see this link.
I'm still not 100% sure if ALL Custom Toolbars won't import for other users, but it does for that toolbar and some others I tested aswell
Here is a preview of how the toolbar should look, some parts do change based on the focused editor:
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