I'm DM'ing for the first time with a group playing for the first time (Table of Noobs). In the 1st chapter of Lost Mine of Phandelver, the characters come across dead horses, are attacked by goblins, and discover a path into the woods. The campaign book says they "can easily steer the wagon away from the road and tie off the oxen while the group pursues the goblins". This, to me, implied that the wagon couldn't go down the path.
Fast forward a bit, at the end of the path is a cavern/goblin hideout, PC's enter, kill goblins and bugbear leader (Klarg), yada yada yada. In Klarg's lair, there are a bunch of supply crates, and the description says "the captured stores are bulky, and the characters will need a wagon to transport them". They have a wagon, but apparently no way to get it to the cave.
The trail is 5 miles long, so carrying the crates back to the wagon is out. My solution was to retroactively say that when they entered the clearing where the cave is, they could see another, wider path leaving the clearing that has clearly been used for moving vehicles/supplies. This was met with dissent, as it was deemed "railroading" the story and not letting them discover a way themselves.
- The dissent was from a player. Granted, there is more backstory to the reason it was questioned (one player keeps doing things on his own/making decisions on his own, and I "reinforced this behavior" by giving him an out with the path. There's also a bit more chance for argument than normal as the PC's are wife and kids :).
So finally, the related question in dealing with this problem:
Is this actually a plot hole, or have I missed something?
Another question related to my handling of this has been asked here:
Is it okay to retroactively change things when running a published adventure?