More issues with 5.1 to 6.0 Library migration

[ML9104]

Having finally migrated to 6.0.2, more issues keep popping up. In this case previously functioning standard symbols that no longer work in 6.0.
I’ve tried invoking the symbol editor, but found nothing obvious.
This is the symbol in 5.1:

And this is the same in 6.0:

I have no problem recreating the symbol by hand in 6.0, but wonder about this. More seriously, will I run into this issue with other symbols?
I’m guessing wildly, but in the 5.1 symbol editor the line width is displayed as 0. Could that be the issue?

[retiredfeline]

Works for me. I just plucked it out of the standard symbol library and plonked it onto my schematic.

[ML9104]

Hmm. Odd.
It’s no big issue for me, I’ve planned on moving the power symbols to my custom libraries anyway (which would make the “power” icon superfluous). But it’s hopefully not a part of some other issue.
Thanks.