Open uBO Dashboard and Logger. Click on clock icon next to EasyList and click on "Update now" to force and update.
Then logger shows many invalid filters in easylist, mostly related to
-abp-properties
and webrtc
-abp-properties
and webrtc
-abp-properties
and webrtc
are not supported by uBo (only ABP / AB)-abp-properties
=> matches-cssnowebrtc.js
=> example use: t-online.de##+js(nowebrtc.js)