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Getting error ORA-12537 lately

Ray007Mar 3 2021

I recently started getting "ORA-12537: Network Session: End of file" when attempting to connect to one of my Oracle databases in the cloud (oracle cloud) with this extension.
it worked a few days ago with no issues so I don't know what changed
the connecting is done over an ssh tunnel
everything still works (over the same tunnel) if I use Oracle SQLDeveloper
this VSCode extension still works fine for any other database I've tried. It is only this one hosted in Oracle Cloud that is no longer working. This includes other DBs where I need to use an SSH tunnel to connect
Environment:
running on macos 11.2.2 (intel)
up to date on all updates
tried upgrading to dotnet runtime 5.0.3 and same error
Anyone else see this before and know any resolution?

This post has been answered by Ray007 on Mar 24 2021
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Added on Mar 3 2021
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