I have been terraforming around a cliff that I claimed, not the actual cliff itself, just around the base. I finished the work over week ago and all was good, no problems.
A couple of days ago, maybe 3 days ago, I noticed that a section of my cliff changed to reveal dirt rather than the yellow cliff face although it hasn't changed in height or anything, a day later a second section did the same thing and although on the same side it was not adjacent to the first section.
It can't be connected to the crops growing beneath it as they have been there since the start, like weeks now, and are also around the other side in the exact same position and that side of the cliff is fine. Also, the first section to change was the furthest right and at that time it had no crops beneath it, at that point they were only in the small square where I am standing.
This morning I log onto a further two sections having changed appearance as shown below;

There is no terraforming or building going on around it since the I finished the work, only paving, which hadn't been started prior to the first two sections changing. I did the paving yesterday.
This is extremely unattractive and I'm not at all happy about it.
Is there a reason why this is happening and is my whole cliff going to end up looking like that?
