Is it necessary to put a pause in a filemaker script which calls this applescript? It loops through all records setting the image to the path.

set image_path_var to cell "ImagePath" of current record

set cell "SKETCH" of current record to file image_path_var

You may need to include a pause for the Applescript to complete - it depends on what the Applescript is doing and if you are using a result to complete the FileMaker script.

I'm not an Applescript expert by any means, but looking at yours, it looks like you may need maybe a second or so pause to let the Applescript to bring the information into the field.

Just try it without a pause and if it doesn't work, start with a 1 second pause and increase it until the scripts work.

I hate time delays. If they are long enough to ensure that everything works, then they likely are wasting a lot of time. Rather than pausing for a period of time and hoping that it is long enough for the Applescript to complete, I would have the Filemaker script do this:

Set field [Flag, ""]

Perform Applescript[whatever]

# The applescript should be set up so that its last step

# sets cell "Flag" to some value.

Loop

 # Wait in the loop until Flag is set

 Exit Loop If [not IsEmpty(Flag)]

End Loop

You likely would want to include some time checking in the loop so that if something goes wrong with the applescript, it won't cycle endlessly.