I have a tool that puts in multiple blocks of preset sized circles. After a while when I try to snap to the center of these blocks, AutoCAD loses the properties of the blocks and snaps to 0,0. Even trying to snap the nearest doesn't work anymore.
I have no clue on why this works for a while, then just stops. If I close the drawing and reopen the snaps work for a while longer then quits again. Wouldn't be a problem but this happens 3-4 times in a day. I'm able to list the block, and change the properties if I want (columns, rows, spacing), but the center or nearest is always back to 0,0 unless I reopen the drawing.