I was wondering if the orange "Force Field" would deliver knockback damage if a figure is bumped back into it. This is because the text says they are "not walls or blocking" and yet characters cannot move through them by any means...

... so is being knocked into them like hitting a character (you just stop) or like hitting a wall (knockback damage)?

I would think it would deal some sort of damage, but I don't know what.

You just stop, I'd say, but we need an official ruling...

I would say yes they take knock back damage.

My reasoning is because when a character gets knocked off the board, there is no wall or blocking terrain to stop them. They just stop and take some KB damage.

I would say the Force Field cannot be destroyed (with 3 or more damage) because it is not a wall or blocking terrain.

Sounds like something that will need to be FAQed.

Oy yoy yoy.

My opinion : knockback damage is dealt when the character hits a wall/blocking terrain, the edge of the map or when he falls from a rooftop. The Force Fields are neither. So I guess no knockback would be dealt.
But I am curious about an official answer too.

Cap'

pending an errata they would not take any knock back damage.

Like the previous two have said.

As things are right now a character will not take KB damage from being knocked into a force field.

I got an official answer from nbperp - apparently being knocked back causes 1 damage no matter what interrupts your path (except a character - it is explicitly an exception).

"A grounded character’s knock back path
can’t continue beyond a wall, the edge of the map, or the boundaries of
elevated terrain (see Elevated Terrain, p. 12) or blocking terrain. If it would
do so, the character’s knock back path stops in the square before the path
would cross into any of those areas, and the character is dealt 1 knock
back damage,"

Ergo, the force field causes damage for knockback. Even if you disagree - this is now official from nbperp.

I saw that post today, and registered my disagreement there, also.
I think it makes sense that it would cause knockback damage, but I do not see anything in the wording to support that it does.