I was leveling up my character to see what subclasses my  multiclass could take. After putting my character back to the level I was supposed to be , my passive skills and my skill modifers have all changed and haven't reset I have tried logging out and trying on the app. Is there anyway to reset with out duplicating the character as a new character?

https://www.dndbeyond.com/profile/DouglasEssmann/characters/43110212

I did not manually change any skills, or add any feat that I know of. I have tried leveling my character back down to level one and it still did not reset. 

You have a magic item giving you +5 to every skill. My money is on the Dragon's Call item, try unequipping that and everything else.

It was the dragon's call item . Thank you all for the help, I will have to ask the dm about that.

I also have a similar issue:

I chose a Martial ability at level 3 to see what it did, and I am now stuck with the 'Champion' Martial ability and cannot change to anything else.

I have tried clearing cache, logging and and out, changing levels and nothing works. Please help as we are playing tonight!

https://www.dndbeyond.com/characters/76281254

That’s not quite what this thread was about. The Champion is a “Martial Archetype.” The Champion is the only free content Martial Archetype available. To unlock access to any of the others you must either purchase the books they are contained in, or purchase them individually á la carte.