+2I have a workbench with a RasterMosaicker that runs fine in 2021.2.6, but the same workbench throws an error in 2025.1 “Failed to mosaic the rasters”. Same error for version 2024.1.2.1.
The error occurs only when setting the parameter “Overlapping Values” to “Composite Using Alpha Band”.
Is there anything known causing issues regarding raster transformers in newer versions that might explain this?
+58Can you inspect the feature/record going into the RasterMosaicker and take a screen snapshot of the FeatureInformation showing the raster and its Alpha band
You need to ensure all features/records have this alpha band
FME2024.1 might be stricker about mixed bands being tagged or not tagged with Alpha
Use RasterSelect to ensure band count is the same… forcing all RGB to RGBA
or RasterBandNodataSetter (for nodata → alpha effect)
