Object styles and anchored objects and crashing

RE: crashing app. I just spent two whole workdays really frustrated with InDesign crashing at least 50 times. (Working to edit book files that somebody else created.) A professional rep could not help, either. He was very kind, but took a long time to find the wrong answer and create more problems. I figured it out myself afterward. It's something that I could not find anywhere, so I'm not surprised he didn't know, either. My InDesign app crashed over 50 times in two days because of object styles applied to text frames with anchored graphics. Every time I tried to paste new text on a page with anchored graphics, the app would crash. I could not select the anchored graphics. All I had to do was un-do the object styles applied to the text frames. (I wasted time re-installing software, trying other computers, updating OS, trying older versions of software...) I want to make a public post about this because it was really frustrating to waste two whole days of work time, and then the pro was not able to help, only to delete all my preferences, which took me a while to re-do, and to suggest a solution that would have been way more time-consuming than what I figured out for myself. (The suggestion was to copy all 300 pages of a book across dozens of files into new documents.) Hope this helps somebody googling the right words like I tried to do.