Pre-processing of GRD files has java.lang.NullPointerException erro

I use a saved graph to pre-process Sentinel 1 GRD files. Today the graph has taken a long time to set up, for example it is really slow when trying to open the Speckle Filter tab to select a filter. I don’t understand why as I carry out this process all the time with no issue.

Log message and graph xml attached

RUS_training_graph_nospecklefilter.xml (6.4 KB)

messages.log (221.7 KB)

SNAP 8 is no longer supported. We kindly recommend updating to the latest version of SNAP.