When a report contains the results having both emoticon(i.g. '&##128513;') and accent characters(i.g. 'é') which were retrieved from Amazon RedShift, it fails to be run.
The scenario is that accents such as é can work with Non UTF-8 and fail with UTF-8 mode in DBI (error message would be UTF8ToWideChar). While on the other hand, emoji characters like &##128513; can work with UTF-8 but fail with non UTF-8(error message :WideCharToUTF8).
Therefore when results contain both emoji &##128513; and accent é, the report cannot be executed.
STEP TO REPRODUCE:


CAUSE
Accent characters should be recognized from non-utf8, but the emojis like &##128513;, belong to Surrogate Pair of UTF-16 which belongs to Supplementary Planes that are not supported for convention in Strategy.
ACTION
This is fixed in 10.4.4 and 10.8. Upgrade to take advantage of the fix.