KNIME 5.9 Preview - Parquet Nodes disappearing
It seems that in the latest KNIME 5.9 Preview (nightly build) the Parquet Reader nodes simply disappear and are not present when opening a workflow featuring them. Also they are not being prompted to be installed.
Try to load this workflow and see the parquet reader not being there on the left side:
Maybe I have to install all of the nightly build again since there seem to be some preview KNIME 5.10 items still in play.