ok very very weird

24 hours ago when i posted the link was broken when looking at thread, and was not broken when linking post (not thread), it did not fix itself after clicking and opening viewpost link.

now i just noticed a post (edited about same time 24 hours ago) get fixed, by simply clicking on the viewpost and opening post in new tab/window. when i went back to thread, they were un-broken. this did not happen 24 hours ago when i was posting here about the broken link when viewed one way.

so i have something to try in future. note the post i just noticed get fixed did stay broken for 24 hours.


edit >
and i forgot something important, browser caching could be a factor.