In the Replay Viewer, we can see the chat input when opening the chat. Keybinds are also not working properly, we have to use a mouse button (left or right) after pressing the keybind to make them work.
Logs do not show anything wrong.

Yesterday someone reported the chat opening on 1.16.4 but I wasn't able to reproduce.

Can confirm this is happening on 1.14.4 as well. which is a major problem because due to #386 not being fixed yet i need to use this version :
This version of replay is practically unusable on 1.14.4, so time to downgrade.