I think the 2 most basic fixes that would most likely not break anything would be:
1.) Expand the trigger areas 1-2 pixels further below.
That would 100% fix cases like the shown crystal trap, or the 10t masher. As objects are placed on the ground there would only be rare cases where level or replay adjustments would be nessesary.
2.) Adjust the trap's graphic 1-2 pixels higher, so that the trigger area stays the same, but the graphic is now in a more fitting place.
This would lead to no replay adjustments being nessesary, but there would be some visual adjustments nessesary on some levels.
1.) Expand the trigger areas 1-2 pixels further below.
That would 100% fix cases like the shown crystal trap, or the 10t masher. As objects are placed on the ground there would only be rare cases where level or replay adjustments would be nessesary.
2.) Adjust the trap's graphic 1-2 pixels higher, so that the trigger area stays the same, but the graphic is now in a more fitting place.
This would lead to no replay adjustments being nessesary, but there would be some visual adjustments nessesary on some levels.