Ulta has now shifted to a more modest outlook for the second time this year.For the second straight quarter, Ulta Beauty (ULTA 0.34%) lowered its full-year guidance. While its share price fell on the news, the stock held up pretty well given the pressures the beauty products retailer has been seeing, likely helped by a recent investment from famed investor Warren Buffett.With the stock down more than 25% on the year, let's take a closer look at its most recent earnings report and guidance and see if investo ...