I can't figure out what's wrong with my installation. It's a fresh install of NodeBB 1.10.2 (two days old at most), but I can't seem to ever get this theme working.
I first tried installing the theme straight away from Admin CP (through the Find Plugins interface), applied the theme, then rebuilt & restarted NodeBB. But whenever the theme was active, the forum couldn't seem to render properly, since /assets/client.css was always throwing 404.
But as soon as I switched to any of the built-in themes, rebuilt & restarted NodeBB, it'd render just fine with the said theme. I tried multiple times switching to built-in then to Oxide, but no luck.
I also tried removing the package with NPM (npm remove nodebb-theme-oxide), then re-installed it again also with NPM (npm install nodebb-theme-oxide@latest), then afterwards rebuilt & restarted NodeBB, but still the same result (client.css throwing 404).

$ npm list nodebb-theme-oxide
[email protected] /path/to/nodebb
└── [email protected]

Any clue?