Recording list shows inexistant unknown records and hides what should be there instead

[teh-cmc]

Starting state:

Then one ./examples/python/clock/main.py --steps 1000 --connect later:

Then a second one:

Then a third..:

Then sending a bunch of them one after the other:

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Starting again from scratch and this time sending a bunch in parallel (./examples/python/clock/main.py --steps 1000 --connect &):

[emilk]

Related:

• Show all loaded recordings as tabs #1905