I believe IPUMS has the 5/8 sample for the 2014 ASEC but was planned to update by this summer will full sample. Is that on track?
(I asked and received an answer for this in February but see how to respond to that answer with another question – apologies for asking the same question again.)
Currently, the Census Bureau is re-processing the 2014 ASEC 3/8 file, but they do not have an official timeline for re-releasing the file. As soon as they make the 3/8 file available, IPUMS-CPS will be able to provide the full 2014 ASEC sample.
Sorry that I could not be of more direct assistance.