As I'm writing this, I'm idling in the right room of Iron Hulk (Unstable ping, I'm waiting until it gets lower). I'm in the middle-bottom zone, completely safe and out of reach of the Wisps.
I was checking my inventory when, all of sudden, my shield's health went down almost the half. It got stuck there, no recovering at all. I had to let a Wisp hit it to make it go to 100% again.
It's not the first time happening, but it's the first time I see the exact moment when it happens.
And before anyone says anything: no, it does not has to do with the ping.
Bumping this as it happened AGAIN. Now the shield completely broke, so I'm shieldless.
If this is a intended feature, let me know, please?