I have a level 5 Mountain Dwarf, Fighter, Soldier. At lever 4 I wanted to take the Feat Heavy Armour Master however it does not give me this option even though being a fighter I am proficient in all armour classes.
Have you purchased the PHB, or the feats package, or that feat, on DND Beyond? Or are you in a campaign that gives you access? If neither of these are true, then you would not have access -- Heavy Armor Master is not one of the feats you get from the Basic Rules for free. If you choose not to pay you should be able to create it with the homebrew system.
I have a level 5 Mountain Dwarf, Fighter, Soldier. At lever 4 I wanted to take the Feat Heavy Armour Master however it does not give me this option even though being a fighter I am proficient in all armour classes.
Why is this?
Have you purchased the PHB, or the feats package, or that feat, on DND Beyond? Or are you in a campaign that gives you access? If neither of these are true, then you would not have access -- Heavy Armor Master is not one of the feats you get from the Basic Rules for free. If you choose not to pay you should be able to create it with the homebrew system.
Birgit | Shifter | Sorcerer | Dragonlords
Shayone | Hobgoblin | Sorcerer | Netherdeep
There is only 1* free feat (grappler). Most of them are in the PHB.