Mine Clearing and lanes?

[Ubercat]

The strength of the mines is not mentioned in the passage I quoted, so I don't think that it's relevant to the situation.

I double checked the last time and the engineers weren't disrupted. It's too late to recheck the first instance so they may have been.

I'm playing Smolensk '41 and I'm pretty sure I got the latest patch. It's version 1.16 copyrighted 2011. I'll keep an eye (and ear) out to see if it happens again. Thanks, guys.