Ticker symbols are unique within an exchange, but are not unique across all exchanges. For example, AEV is a valid Ticker Symbol for Aboitiz Equity Ventures traded on the Philippine Stock Exchange the default security on FT. However, AEV is also the Ticker Symbol for Avenira Ltd among other. So, in such cases you must check that the Trade Currency and Price returned matches your expectations and if necessary select an exchange (Exch Mod) that results in the required outcome. All this is explained in the Quote Loader PDF attached to post 202 at https://infinitekind.tenderapp.com/discussions/investments/4914-the...
How to set a Exch Mod is also set out in the PDF
See Screen shot for your three securities that need a Exch Mod
EDIT - a typo in screen shot - used AVE instead of AEV for ticker. Corrected in next post.