not working with nvim version 12

[abdelkadouss]

nvim info:

NVIM v0.12.0-dev-2097+g72ac9ac9a1
Build type: RelWithDebInfo
LuaJIT 2.1.1767980792
Vim versions: 8.1, 8.2, 9.0, 9.1

issue desc:

i have a demo here: (u may have to wait for this gif to load it's here just wait)

[abdelkadouss]

I'm not sure, but I think this is a problem upstream, and if so—and because I don't understand the instructions for this plugin—could you tell me where the problem appears so I can report it to the nvim repository?