New Position Error newPosition < 0: (-1 < 0)

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Everett

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Feb 6, 2025, 10:30:04 AM2/6/25

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I'm attempt to use tigerVNC viewer on windows 11 to connect to at tigerVNC server running on an Amazon Windows EC2 instance. It seems as if I'm connecting but the viewer seems to crash giving an error:

"com.tigervnc.rdr.SystemException: read:com.tigervnc.rdr.Exception: newPosition < 0: (-1 < 0)"

Has anyone seen this before?

Tunnel: SSH_MSG_NEWKEYS sent
Tunnel: SSH_MSG_NEWKEYS received
Tunnel: SSH_MSG_SERVICE_REQUEST sent
Tunnel: SSH_MSG_SERVICE_ACCEPT received
Tunnel: Authentications that can continue: publickey,keyboard-interactive,password
Tunnel: Next authentication method: publickey
Tunnel: Authentications that can continue: keyboard-interactive,password
Tunnel: Next authentication method: keyboard-interactive
Tunnel: Authentications that can continue: password
Tunnel: Next authentication method: password
Tunnel: Authentication succeeded (password).
CConn: Connected to localhost port 55956
CConnection: Server supports RFB protocol version 3.8
CConnection: Using RFB protocol version 3.8
com.tigervnc.rdr.SystemException: read:com.tigervnc.rdr.Exception: newPosition < 0: (-1 < 0)
at com.tigervnc.rdr.FdInStream.readWithTimeoutOrCallback(FdInStream.java:196)
at com.tigervnc.rdr.FdInStream.overrun(FdInStream.java:147)
at com.tigervnc.rdr.InStream.check(InStream.java:41)
at com.tigervnc.rdr.InStream.checkNoWait(InStream.java:57)
at com.tigervnc.rfb.CConnection.processSecurityResultMsg(CConnection.java:308)
at com.tigervnc.rfb.CConnection.processMsg(CConnection.java:147)
at com.tigervnc.vncviewer.VncViewer.run(VncViewer.java:442)
at java.lang.Thread.run(Unknown Source)