The current version of lsp-plugins in repos is 1.1.21. Versions higher than 1.1.14 need PulseEffects 4.7.2. Older PulseEffects versions only work with Linux Studio 1.1.13 or older. This is stated by the pulseeffects dev on github.
Currently eg the equalizer in pulseeffects is not working as an update to 4.7.2 is required.