[Bug]: Error E475 when using Neovim nightly

[WildRage1369]

Neovim version

v0.11.0-dev-275

Language affected

No response

Query

No response

Strategy

No response

Description

After upgrading my Neovim version from v0.10.0-dev-2191 to v0.11.0-dev-275 rainbow-delimiters does not work at all, with rainbow-delimiters.log reporting:
lib Error attaching strategy to buffer 1: Vim:E475: Invalid value for argument type: c

[HiPhish]

I just tried with the AppImage of the latests nightly (v0.11.0-dev-301+g6c3f7e7e2) and it works fine for me. What language is affected? Have you tried with any of the test files in this repo (test/highlight/)? Have you tried updating your parsers (:TSUpdate)?