Ornithopter issues

I've recently put together an ornithopter + walk speed build for zooming purposes.

However, I'm noticing that sometimes once I stop sprinting with the low-sprint-bar boost, my movement speed gets set to something really low. So slow that I can't move by pressing W- I can only move at all if I jump, or use my mobility ability. This will last randomly somewhere between a few seconds and a minute or two at most.

Is this a known issue? Is there some way to prevent it? The going fast build is much less appealing if sometimes it ends up being a going slow build instead.

 

What class and other items are you using?

 

I'm an archer w/ stormy feet.

Items are Ornithopter, Thermosphere, Dark Shroud, Boots of Blue Stone, Double Vision, and some rings & a necklace that don't interact with movement at all.

Total walk speed +57%, total sprint -197%, total sprint regen +397%

 

That seems like a bug. Report it, maybe it'll get fixed sometime
For the time being, just use another helmet i guess
...Why are you using ornithopter anyway?