Hi all,
I created a buffer shapefile for a stream network, and spent time manually editing the buffers around lakes to ensure that the buffer aligned with the edges of the lake (using a land-cover map raster).
When I reopened the project today and loaded the adjusted shapefile I found that is it now misaligned by about 7 metres - it almost appears to have shifted since I last had it on the map.
Not sure what's going on here - any suggestions?