Scoreboard objective-related placeholders always returns with ["Invalid Objective!"]

[St1kee]

I was planning to use this placeholder for a Playtime TOP sidebar using your Styled Sidebars mod on my fabric server.

Every placeholder I've tried works fine, except the ones related to objectives:

%player:objective [objective]%
%server:objective_name_top [objective] [position]%
%server:objective_score_top [objective] [position]%

My most-likely-to-work attempt looks like this:
"<dark_purple>4»</dark_purple> %server:objective_name_top [hc_playTime] [4]%"

I've tried to replace hc_playTime with other objectives, even ones that I just crated, and all of them return the same result
["Invalid Objective!"]

Same goes for all other objective-related placeholders.

Also took a look at your code regarding scoreboard objective placeholders, but I couldn't find the issue there...
If this is a syntax issue, the documentation/wiki might need a refresher to be more straight-forward.

[bakkbone]

Don't include the square brackets, eg. "<dark_purple>4»</dark_purple> %server:objective_name_top hc_playTime 4%"