Not all podcast episodes displayed

[Podcasts2018]

Hi there,

I am trying to listen to a podcast I am new to, however there are over 300 episodes already. I want to listen from the beginning but I seem to only be able to go back as far as episode 34 on the android app. I have tried sorting it by date but I have had no luck getting the episodes before ep.34. 

Any help offered would be greatly appreciated.