This is not fixed in 4.19, my Get Relevant Anim Time Remaining nodes still do not work in some cases. Nothing I do fixes them. The animations that existed before they randomly (as far as I can see) broke still work, but when I use a different animation or blendspace with all the same settings and near-identical animations they don’t. Anything I add after the fact does not work.
Maybe you fixed this single cause of the bug, but you haven’t fixed the bug. I do not know how to reproduce it, it just happens while I’m building a large animation blueprint after a while.
I can’t provide a project, NDA.