I am deeply sorry about that, but Pokemon cannot be evolved at request, nor can their levels be returned back. Please take some time to read the Terms and Conditions of the game. The following excerpt is relevant:
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It's not a bug. You are at Slateport City, go left and up to Route 110, then to Mauville and from there, go to Lilicove just the way you did the first time and go to where Rayquaza is from there, right then down the ocean.
Content staff work on events. Shane works on the client and database related matters such as new items/accessories/etc.
Great! Are you aware there is a place where changes for each new client are listed? I think you should check it out before saying such things :)
Additionally, there is only one developer but more than one content staff. This also implies that if one content staff is busy with IRL stuff, others can work on it, while you can't say the same for the developer.
See: https://veekun.com/dex/pokemon/mismagius
Unfortunately, Power Gem was given to Mismagius in Gen VI, for which a lot of the moves have not been linked to the Pokemon that learn it. So, you'll have to wait till the developer implements Gen VI learnsets to the game for non Gen VI pokemon. :(
Topic closed.