Did you check the WRLD, CELL and WATR records in xEdit seen in the screenshot to verify. Maybe there is a drastic mismatch between the terrain LOD water defined on the WRLD record and the water used for the loaded CELLs. There only can be one type of LOD water per world. Usually water in the loaded CELLs needs similar reflection properties. Someone more versed with water in the game might have more insight how this works.
The WRLD record defines the default WATR base record CELLs and terrain LOD water uses. Usually 00000018 for both.
CELL records can overwrite the default WATR base record.
Checking what plugins changed any of these records might reveal something.
DynDOLOD does not change any of these records, it just copies WRLD/CELL records from the winning plugins at the time of the generation. DynDOLOD does not change WATR base records. DynDOLOD does not change how reflections work or their settings.
Edited by sheson, 14 January 2019 - 10:45 AM.