No i didn't, because i had no paladins on this lvl. My highest is currently on lvl 50. That is very weird, because only you reported this problem, and i was using it many times (i was making this script and lvling on it since 50 level or so). I am sure some improvements could me made, but they wont be game changing. Anyway, i will check it soon.
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edit. I checked healing actions and it seems 100% ok. Refresh rate is 50ms, on your level exura gran san is set to < 600hp, exura san on 1/2 hp, exura gran < 70 and exura <90