Hi! I’ve been searching for the best train connections on multiple sites (interrail site, railplanner app and DB) but now I wanted to check if these trains are included in the interrail pass. One of my trains (Triëste - Ljubljana) showed up on the interrail website as “Details unavailable”. It’s a RE train so I think it’s without reservations but it crosses the border (so I’m not sure anymore).

I don’t want to book this train, just want to know if I can take it (without reservations).
This also showed up for the S-bahn from Brennero Brenner to Innsbruck, but the interrail site (https://www.interrail.eu/en/plan-your-trip/trains-europe/trains-country/trains-austria) told me that it’s included. I checked the page for Slovenia (https://www.interrail.eu/en/plan-your-trip/trains-europe/trains-country/trains-slovenia) but the Trieste-Ljubljana route isn’t listed under the international routes.
Does someone know if this train is included in the pass or not? Thanks!