hvplot.streamz not able to visualize multiple plots

#### Description of expected behavior and the observed behavior
Only the first plot will visualize the data.

#### Complete, minimal, self-contained example code that reproduces the issue

```python
from streamz.dataframe import Random
import hvplot.streamz

df = Random(interval='200ms', freq='50ms')

df.hvplot.table(width=500, backlog=10) # OK

df.hvplot() # Not OK
```

#### Screenshots or screencasts of the bug in action

```
python 3.9.16
windows 10
firefox
jupyter lab
hvplot.__version__
Out[3]: '0.8.4'
bokeh.__version__
Out[5]: '3.1.1'
holoviews - 1.16.2
panel - 1.1.1
```