Is it normal that after finishing the first level I cannot go to the shop? my only options are going back to menu or retrying the level
No, that's not normal. I've never encountered that... It sounds like you lost and didn't actually win. Did you see "Victory" with those options?
I don't think so. I'll try a new game asap and give you more feedback
Thanks again for your continued attention :)
I played another game this morning and it works properly. I did the same thing as before. I'm pretty certain the first time I had 11 hearts...