Default filters warning in 2.0.4.5_beta says a hard refresh solved it (but filters do reduce performance).
If it doesn’t solve it, that thread might be a good place to seek further advice on what to do to resolve it.
Warning --default-filters is not supported #3532 also reported hard refresh (its method varies) solved it.
How to Hard Refresh pages in your browser, on a Mac (Safari, Chrome, Firefox, and Opera)
v2.0.4.6-2.0.4.6_canary_2018-12-11
Added cache-buster for all local static files, thanks @LacunaSoftware
but unfortunately v2.0.4.23-2.0.4.23_beta_2019-07-14 is 2.0.4.5 plus an urgent warning, so lacks the fix.