[2019] Land mines doing drastically less damage?

Noticed a weird bug and i say bug because it isn't mentioned in the patch notes but land mines are doing approx 6-7 damage to tanks now instead of the 30-50 they did previously.

I laid out a good minefield before and had a tank roll right on through, hitting multiple mines and taking maybe 30 damage, when it should have exploded 3 mines ago.

I'm trying to track if player laid mines do different damage compared to plane-dropped or tank-dropped mines but it's very hard to get people to run them over to test it.

Mines still 1 hit transport vehicles.

Has anyone noticed this? Do mines have glancing blows now or something?