Expression used inside a CALL:X

Hmm I can not seem to get this to work. Perhaps its not possible but take a look at this CALL:X

THe expressions by themself work fine… but the CALL is not getting the correct data for some reason so I think it has to do with this expression and all the nested tags.

{CALL:Time.eta("[=FD(ADS('{TICKET TIME}',TN('{SETTING:{TICKET NO}}')*60),'HH:mm')]","[=FD('{TIME}','HH:mm')]")}

Ok so that was a lot of work just to work around reserved colons with nested nested tags lol.

Anyway I got it to work:

I had to dump most of the converting work to be done inside the rule and then it works like charm.

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