Rank 5 of renew does not show the green healing bar on unit frames when you cast it on your target. It does however work as a mouseover heal from clique. Rank 4 and 6 work fine.

Renew now only shows the heal ticks instead of the full heal now in luna on incoming heals for 3.039 Beta

Working as intended. Use the slider under general options to increase the timeframe.

Downranking hots should be fixed in the most recent version.

I just unlocked Renew Rank 4 and now none of the earlier ranks shows the green bar. When Rank 3 was my max rank I couldn't see the previous ones either. Not sure if this was the case when I went from Rank 1 to 2 as I wasn't using Luna yet.

There might be problems with downranked hots since blizz got rid of spell ids in the last days of beta. I will take a look.