What happened to my cut paths?

[Frank246 (Frank Smith)]

I have been cutting the attached file in 7", 8", 9", and 10" versions. Have about65 of 100 done so far.
However, today the attached file just totally went ??strange??
In the attached pic, note that there were suppose to be 4 Advent Cross Wreaths. This cut, as shown, was with the 1/16" bit and no changes made between the two paths for this bit. However, the smaller 4 sets of individuals lines for each wreath are in the correct position(s), but the triangular parts, 4 sets, are all moved up the board and out of position.
Checking the file in CM, it shows correct.
Checking the home XY position is correct.
Checking the file in CC is correct

Obviously does not cut correct.
How can the XY position not change yet the file does not cut correctly?
7 inch cross wreath 5.c2d (180 KB)

[Frank246 (Frank Smith)]

I went ahead and continued with the file cutting the outside contour

and it seems like it is in the correct place as it should be ??

[Frank246 (Frank Smith)]

Additionally, here is the same cut with the same file just before this “??problem”"?

[WillAdams (William Adams (Carbide 3D))]

Did the machine lose steps against something?

[Frank246 (Frank Smith)]

I did not see anything out of the ordinary until it started cutting the triangular pieces in the wrong place. The machine stopped as wanted a bit change so I did decide to go ahead with that change and in the mean time recheked my xy home and z height and all was good. Continued with the file but only cutting the outside contour and the contour appears to be in the right place??

I have turned the bd. over and loaded the same exact file again, without resetting anything relative to xyz and it seems to be currently cutting correctly??

[Frank246 (Frank Smith)]

Same file, just reordered the paths to save changing bits. Same XY and Z as before. Looks like it is cutting correctly??