Context
I have some GeoTIFF files that are loaded directly into OpenLayers via a WebGLTile Layer with a GeoTIFF source. My code is similar to the example in this workshop. I am also registering a non-default projection, EPSG 6931, and applying it to my map on initialization--this is the same CRS defined in my GeoTIFF raster data. So far, the GeoTIFF renders as expected and aligns with my base map and vector tile layers.
The issue
When adding a DragRotate feature, however, I came across some unexpected behavior. My raster layer distorts/stretches, forming a horizontal line of pixels across the map and then disappearing. My base map and Mapbox Vector Tile Layers rotate as expected. I am using a custom TileGrid that's applied to all of my layers. The GeoTIFF initially renders correctly, but distorts as I use DragRotate.
What I've tried so far
I have looked into georeferencing as a possible solution to my problem, but I'm not sure if I understand it correctly. My GeoTIFF data already has the CRS I want defined. I also looked at the getRotation and setRotation properties of View, but that doesn't seem like it would solve my distorted image from what I've gathered in the documentation.
Questions
How can I get my raster data to rotate like the base map and vector tile layers without distorting? Would serving my GeoTIFF from a proper tile server fix this (like shown in this example)? If so, is this possibly a bug in OpenLayers ol/source/GeoTIFF or ol/layer/WebGLTile?
UPDATE
Set up a WMS service in GeoServer and I'm able to use DragRotate without this issue. I'm still not sure what's causing the behavior when I use ol/layer/WebGLTile.
