Thread:Extension talk:LiquidThreads/WikiEditor and LiquidThreads 2.0

I have a MW 1.19 installed with WikiEditor 0.31 et LiquidThreads 2.0. LiquidThreads worked on MW 1.18 but not in MW 1.19. When I start a new thread, a circle-shaped wait indicator appeared in page.

Did you know how can I fix that ?