Should I switch to other class when my MSQ progress prevents me from level up?

[Iscah]

I am a brand new player to the game. I just recently hit 50. I went and unlocked RDM and saw that I wasn't getting EXP either anymore. I own every expansion. I bought the complete edition with all expansions on both PC and PS4. You need to complete your main story to enable higher levels, unfortunately.

You shouldn't have to do that. I have one alt who is still at Lv20 in the story (just joined a GC) but is over Lv50. Another alt hit Lv60 in time to pick up gunbreaker before the ARR finale.

Most likely you haven't registered your game properly. Otherwise, something else is wrong.