I'm periodically now seeing an "Out of Memory" dialog after upgrading to V5.15. Dismissing the dialog causes another to immediately appear. If I continue to dismiss them (usually 5 or 6) I get the "uVision has stopped working" dialog forcing me to restart the IDE. I using the same Windows 7 Ultimate 32-GB RAM machine and these crashes didn't occur before the update to V5.15.
FYI to anyone tracking this thread. A memory allocation problem with Version 5.15 which results in Out of Memory and, eventually, uVision has stopped working HAS BEEN CONFIRMED and referred to developers in Germany. For now I just open the problem causing code snippet file in another editor and get back to work on my project.