Knockdown Shield depleted = stuck at crawl speed for the rest of the match

I didn't record this, but here's what happened:

I got shot, went down and used my Knockdown Shield until it got broken. Then, instead of being able to crawl at regular crawl speed, I was still crawling super slowly, holding the depleted shield in front of me, unable to put it down.

After being revived by a team mate, my walking speed was still that of the slowest crawl (i.e. being knocked down with the Shield held up). Any combination of keys or movement couldn't break me out of it. I could jump, but not slide, not sprint, only shoot and walk super slowly.

And of course it happened just as we made it to #2 ☹️