Yes, I've had that happen too. For my latest legendary, the Giratina in the Distortion world, it struggled three times. It didn't look like I was going to have any sort of luck with it, plus the delays were swinging like mad, up and down, never stable, so it took ages to hit the right delay. I looked up the 100% catch code at that point and used it, then I changed my thread advisory stating that I might use the code on certain legendaries. I've spent more than a day on just getting on some delays because Pikatimer just isn't stable on my computer. I turn as many programs off as I can, but still. I can't even refresh a web page when I'm running it.