The client connection hangs when I do client/server visualization with ParaView 5.11.1 Server.

The server was running in a container with OpenMPI. And the Windows(Win10) client is download from .
The client will be stuck in connecting even though I see a server output the client is connected.

By the way, I can use macOS version of ParaView Client 5.11.0 to connect to the same server.

Server Dockerfile

FROM ubuntu:20.04 as builder

RUN apt update -y 
RUN DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt-get install -y git cmake build-essential libgl1-mesa-dev libxt-dev qt5-default libqt5x11extras5-dev libqt5help5 qttools5-dev qtxmlpatterns5-dev-tools libqt5svg5-dev python3-dev python3-numpy libopenmpi-dev libtbb-dev ninja-build libxcursor-dev qtbase5-dev

WORKDIR /workspace
RUN git clone
RUN cd paraview && git checkout v5.11.1 && git submodule update --init --recursive

WORKDIR /workspace/build
RUN mkdir -p /opt/paraview
RUN strip --remove-section=.note.ABI-tag /usr/lib/x86_64-linux-gnu/
RUN ninja
RUN ninja install

FROM ubuntu:20.04

COPY --from=builder  /opt/paraview /opt/paraview
ENV PATH=$PATH:/opt/paraview/bin

RUN apt update -y && DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt-get install -y bzip2 patch qtbase5-dev doxygen python3-numpy libosmesa6-dev python3-pandas libxcursor-dev openssh-client curl openmpi-bin openmpi-common libopenmpi-dev python3-dev libtbb2 libopengl0

Server singularity file

BootStrap: docker
## A private registry. We run it in LAN.

    Version ParaView




ORTED_BIN=$(which orted)

export OMPI_MCA_orte_launch_agent="$(cat <<EOF

exec $@


Server run command

singularity run /pathto/paraview.5.11.sif mpirun --host node1,node2 pvserver

How long do you wait ? Please wait a few minutes to be sure.

60 Seconds.
The program seem no response. And I can only kill it in windows task manager.

Wait longer