Cannot read property 'userId' of null

[IcepickJosh]

Getting this error for some of the blueprints on factorio.school:

Example: https://www.factorio.school/view/-L_OgVnMdZll0lJL52t7

utils.js:273 Uncaught TypeError: Cannot read property 'userId' of null
    at Ui (BlueprintInfoPanel.js:52)
    at Zo (react-dom.production.min.js:153)
    at za (react-dom.production.min.js:175)
    at Es (react-dom.production.min.js:263)
    at yu (react-dom.production.min.js:246)
    at vu (react-dom.production.min.js:246)
    at su (react-dom.production.min.js:239)
    at react-dom.production.min.js:123
    at t.unstable_runWithPriority (scheduler.production.min.js:19)
    at Yi (react-dom.production.min.js:122)