Try put my font manager plugin, below all Visu plugins. The Eli Book can stay on the same place.
If that does not work, I may be able to make a ´patch if I know exactly what plugins, and what scenes or windows the fonts are not working. But for that, add me on discord:
hakuenstudio
And send me there a sample project replicating the problem. But in a way that I just need to hit playtest and open the scenes/windows to check.