Until recently I could use any .jpg as a texture on a plane. But now, the only textures that will show are the ones that are pre-loaded in FlexSim. In this example, I chose mergecontroller.png and it worked but I can't replace it with my own water.jpg or any other that's not already in the list.
I tried putting the file in the FlexSim folders but it doesm't work either. I tried adding the file through the View/Media Files menu but it doesn't work either. I tried with .png files and it's the same problem.
This used to be very easy and straigthforward but I think something is broken now.