When opening a workspace with CRS BNG 27700 I am now getting an error that the following transformation is missing - OSTN15_NTv2_OSGBtoETRS
If I use the next transformation in the list it puts my WMS layers with CRS 3857 slightly off where it should be, up to a few metres but enough to know it is not correct.
I have tried adding the Suggested file OSTN15_NTv2_OSGBtoETRS into the folder named 'proj' it suggests. Note this folder was missing and was created by myself at the suggested location.
as you can see this is far from ideal as it only shows this single strip of the layer I am wanting to view. Has anyone else got this same issue when using BNG 27700 in QGIS 3.10, running on Windows 10?