After re-installing Windows and QGIS 3.14 it seems like some PyQGIS algorithms are not working. For example:
core.QgsProcessingException: Error: Algorithm qgis:joinattributesbynearest not found
I checked the algorithm ID in the latest docs, and it is correct.
For troubleshooting, I created a list of all available algorithms using
for alg in QgsApplication.processingRegistry().algorithms(): print(alg.id(), "->", alg.displayName())
This results in quite a long file to share here but nowhere in the file I can find the algorithm name or identifier.
Note that the algorithm is available via the Processing Toolbox in the GUI, so I wonder where the PyQGIS version is hiding.