Keep losing crowns and resources to lost upgrades and building levels.
I have recently purchased the game in fact last night, have been having some fun with it but have lost crowns and resources when I upgrade things from my buildings. Sometimes the research never takes effect, sometimes the research is destroyed when I log off, sometimes the research is destroyed when I upgrade my building. As well on upgrading buildings I seem to keep losing my upgrade on my building and once in a while it will revert back to the upgraded building. I believe some of these problems have to do with the quest system as when I have three rangers my building seemed to be level two which I upgraded after I had made three rangers, but then it goes back to 1 when I am below three rangers. Thus it costs me more to buy up to three rangers but is cheaper when to build units I already had.
That was just a suggestion of something I have noticed a few times but I have no concrete evidence.
Thank you for the help and I will provide anymore information if you require it.