Hi There! You mention Epic games... Are you perhaps playing the recent freebie from Epic? If so then that is Train Sim World and not Train simulator (TS2021), you may be better asking over on the TSW forum - TS2021 is a totally different beast to TSW1 & 2 .
(I'm playing Train Sim World 2 and yes 1 week is free and redirects here.) I hope it's not redirecting to this forum, as this is for a different product. When are DTG going to sort out product naming so they don't confuse buyers and users?