I am using Ext JS 5.0.1255 with SA 3.1.0.1943 and cmd 5.1.0.26

I am finding that if I build my application for production the calculated model fields are not functioning in IE (have tested versions 8 and 11); they work fine in Firefox.


I don't have an isolated test case and I am unlikely to producing one (instead I will be converting across to using functions).


In case it is relevant, the model I am hitting the problem with has a proxy defined that uses directFN to specify a json data source and is populated by invoking load() on the model class.


I thought I would raise it anyway so others that hit a similar issue can see they are not alone.