Creating a drawing in Designer which required repetitive icons, so created a number of assets.
As seen from the screenshot, the RH side shows part of the picture with the correct symbols, one vector, one pixel.
The LH side shows the asset icons. Most are correct, but the two with diagonal lines (the only common feature I can find) show the icon RH side missing.
I have kept the picture reasonably hi res so you can zoom in. The result is that the top (Vector) icon is not sliced with a straight line.
Easy to work round, it provides correct assets when chosen, but a bit of an oddity. 😉🙂