@Odonata68 Don't know if Ciane is around so I'll tell you the partial answer that I know. The Graham's Pet Swap Shop is the only venue I have that shows the store icon. The rest of mine all show the asterisk. They do install fine in game. I don't know why this happens. The Now&Then Manor showing as a small box means that it won't install. It is an incompatible version usually. What usually works to sort this out is to redownload the item.
The other issue of just having a single number instead of the name, are you talking about in game? A few of my venues are like this. It doesn't show the name, only a number. You just have to recognize what it is by the picture.