Error when using -xall

[nlpalmquist]

My command is
nconvert -quiet -xall *.tif
It runs in a workfolder that has just had 1 tif file copied into the folder. I need to split the file apart and replace the first page in the file. All files should have 2 or more pages, but even if it does not it should write 1 page I would expect.

Sometimes it does the following:

Exception Error -2 in process failed 0(00000000) and the process hangs at a press ENTER:

This routine is automated and when it hangs it can cause issues. Can someone tell me what I should be looking for to resolve this issue?
I can not find any list of Exception Errors.

[xnview]

could you send me the tif file?