Converting FMP11 to 12 container fields not working

[Pat]

Sorry if not the correct area for this, as it does not involve remote fields, but does involve container fields.

 

I am converting an FMP11 solution to FMP12. I have a repeating field (container) that I scripted the ability to put up to 3 pictures, as defined by a lookup based on the id. The pictures reside in a separate file. Works fine in 11. Converted to 12, and sometimes the picture shows up, sometimes I get a 'counter-clockwise arrow' showing up. Pictures are all small (thumbnail) jpegs, nothing large.

 

Any ideas on what is happening?

 

Thanks for any assistance.