plotting neurons and their downstream partners has broken

[Clare72]

This cell from the workshop notebook no longer works:

TuTuA_downstream_neurons_terms=vfb.terms(list(TuTuA_downstream_neurons.downstream_neuron_id))
TuTuA_and_downstream=TuTuA_neurons+TuTuA_downstream_neurons_terms
TuTuA_and_downstream.plot3d(include_template=True)

Output is:

More than the load limit of 20 requested. Loading first 20 terms out of 50
Pulling 20 terms from VFB...
Some terms not found in cache. Falling back to slower Neo4j queries.
Failed to load 0 terms: []
Loading Terms:   0%|          | 0/16 [00:00<?, ?it/s]Warning: Cache query failed. Error: maximum recursion depth exceeded in comparison
Warning: Cache query failed. Error: maximum recursion depth exceeded in comparison
Warning: Cache query failed. Error: maximum recursion depth exceeded while calling a Python object
Warning: Cache query failed. Error: maximum recursion depth exceeded in comparison
Warning: Cache query failed. Error: maximum recursion depth exceeded in comparison
Warning: Cache query failed. Error: maximum recursion depth exceeded while calling a Python object
Warning: Cache query failed. Error: maximum recursion depth exceeded
Warning: Cache query failed. Error: maximum recursion depth exceeded in __instancecheck__

followed by TypeError: unsupported callable after ~3 min