Batched processing hangs waiting for EOS

[m-herrera]

The following pipeline hangs waiting for EOS, needs to be killed with Ctrl+C

gst-launch-1.0                                                   \
videotestsrc is-live=true num-buffers=20 pattern=0  ! mux.       \
tiovxmux name=mux ! "video/x-raw(memory:batched), format=RGB, width=320, height=240" !  fakesink -e

New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0: Internal data stream error.
Additional debug info:
../gstreamer-1.16.3/libs/gst/base/gstbasesrc.c(3072): gst_base_src_loop (): /GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0:
streaming stopped, reason not-negotiated (-4)
EOS on shutdown enabled -- waiting for EOS after Error
Waiting for EOS...

if -e is removed it closes as expected