Dropdown not displaying properly

Question

Hello Appian community, 
 
 so I have a drop down where I am trying to see the the value of the of the entity and entityType and entitySubtype I can see the entities and the entityTypes but I can not see the .entitySubtypes? 
 
 I do not understand why my code is failing and cannot "see" into for each loops to "view" what the values are or why its failing 
 
 here is the code: 
 a!forEach(
 items: local!symbolIcon,
 expression: fv!item.entity & if(
 rule!APN_isEmpty(fv!item.entityType),
 "",
 " - " & fv!item.entityType
 ) & if(
 rule!APN_isEmpty(fv!item.entitySubType),
 "",
 " - " & fv!item.entitySubtype
 )
 ), 
 
 here is what I can see when I run the rule:

here is what you see from the drop down

please lmk if you want more. 
 
 I do not know why the dropdown is not showing the entitySubtype, 
 
 the apn isEmpty rule take any object 
 
 here is the code for it or(
 isnull(ri!array),
 length(ri!array) = 0
 
) 
 
 any ideas would be helpful 
 
 thanks, 
 
 Kevin

Mike Schmitt · Accepted Answer

I dunno, your code looks correct - though I notice your if() statement has the casing of "entitySubType" different from how it is in the CDT ("entitySubtype"), which might throw off the a!forEach evaluation.

Dave Lewis · Answer

For purpose of debug, try replacing "" on your second IF (line 9) with "No Subtype". 
 If you see a whole bunch of "No Subtype", you know that the display code works fine, and you need to find out why the subtypes are empty. If they're not empty, thank you Appian for the new feature to look at local variables, there's possibly a typo somewhere keeping your code from accessing them. 
 If you DON'T see a bunch of "No Subtype", then you know that the second IF statement isn't being processed for some reason. 
 Try to make a dropdown that only renders the subtype, and not even the type. It appears that code for showing only one works, so try code for only showing the other. 
 Hopefully these will assist in figuring out why it's misbehaving.

Mike Schmitt · Answer

It'd probably be a good idea to edit your reply and paste all that data into a code box ( "Insert" --> "Insert Code" ), as it's fairly unreadable otherwise and makes the thread pretty hard to scroll through. 
 Also: with a quick glance through, the values posted in your output so far seem to account for the duplicate entries in your dropdown/picker screenshot, so I'm unclear what the actual issue is. For example, I see several entries that would render as " Weapons/Weapons System - Rifle " in your posted code.

Dropdown not displaying properly

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