Traps sometime stop working in OMD2?

I'm playing the "Passages" map on endless with my warmage. I made a killbox, but sometimes there's, like, an electric storm that happens in the killbox and all my traps stop working for a little while. Is this normal?

Solution 1:

Do you have the 'Are We There Yeti?' dlc?

If so, I believe what you are experiencing is the Goblin Sapper.

The Goblin Sapper, introduced in the Are We There Yeti? DLC, is a small fast-moving enemy that attempts to disable certain Traps by sprinting to them and exploding. They behave similar to Kobold Sappers, although they deal no damage to the player.

Notes

• Goblin Sappers are more damage-resistant than their Kobold counterparts, but they are vulnerable to lightning damage.
• A Lightning Ring is very effective at taking out groups of these enemies.
• When the Goblin Sapper explodes, it disables any traps within 1-3 blocks of the explosion for 10 seconds.
• The afflicted traps will be surrounded by electric auras.
• Some traps, such as Brimstone and Shock Zapper, will lose their stored charge, and will only recharge after the disable effect wears off.
• Using the Trap Reset Trinket will restore any disabled traps to full operational status.

Source: http://orcsmustdie.wikia.com/wiki/Goblin_Sapper