I know it's soon to ask but 1.19.4 seems to have broke dynmap please let me know what information is needed to help you find the fix for this new version.

Release of v3.5-beta-3, which includes 1.19.4 support for all platforms, is in progress now.

It's happening as we speak, there are already dev builds for Fabric and Spigot. Join the Discord to get the latest news.