Yes, sounds like not enough extractor tension.
Remove the slide. Remove the extractor about 1/2 way out of the slide. Carefully and slowly, bend the rear of the extractor (that's sticking half way out) in towards the firing pin. Don't bend it much at all. Re-insert extractor. Slip a round up the breech face under the extractor, and position the case rim halfway up, under the extractor hook. You should be able to rotate the slide 360 degrees without the round falling out. It should take about 4 lbs. of pressure to insert the round under the extractor. If it's harder than 4 lbs., you've bent the extractor too much.
Remove the slide. Remove the extractor about 1/2 way out of the slide. Carefully and slowly, bend the rear of the extractor (that's sticking half way out) in towards the firing pin. Don't bend it much at all. Re-insert extractor. Slip a round up the breech face under the extractor, and position the case rim halfway up, under the extractor hook. You should be able to rotate the slide 360 degrees without the round falling out. It should take about 4 lbs. of pressure to insert the round under the extractor. If it's harder than 4 lbs., you've bent the extractor too much.