I think you missed a step in creating the style in the first place. It shows in the Styles folder as Landscape Architecture Style3 instead of your chosen name. Also you need to be selecting a folder containing the style when trying to access the style with Open or Create…
Make sure you update the style after changing its name and before saving it. You can do this by clicking on the large thumbnail icon at the top of the Styles window or by clicking the Update button (circular arrows) near the top right of the window.
Try the following steps to save it correctly.
Open “Model A” and go to the Styles window.
Set it to display the In Model style(s). You should see something like this:
Click on the button in the upper right corner of the Styles window. It has a black downward pointing arrow and a white + symbol. This will open the secondary pane.
Set the secondary pane to the desired library folder in the drop down window. You should see something like this:
- Click on the mpk1 style icon in the In Model pane and drag it to the secondary pane like this:
- Then open Model B and you should be able to go to that library and use the style.
If that doesn’t work, upload your Model A skp file or send it to me privately so I can take a look at it with your style applied.