event titles sometimes don't display properly

[vnprc]

On my meetup calendar page most events display properly with the title but three of them do not display the event title. The events were created using flockstr UI and display properly in the other calendar clients: coracle and njump.

Calendar:
https://www.flockstr.com/calendar/naddr1qqyxgwpn89jk2v3nqy28wumn8ghj7un9d3shjtnyv9kh2uewd9hsygpc4vlncpsr9tek2dvk0jttc38dwjjxa4mz2k0fk3dzw5z2qa3frqpsgqqq0j6q56qv23

Events not displaying title properly:

two newly created events:
https://www.flockstr.com/event/naddr1qqyxvdtrx4nxyvt9qy28wumn8ghj7un9d3shjtnyv9kh2uewd9hsygpc4vlncpsr9tek2dvk0jttc38dwjjxa4mz2k0fk3dzw5z2qa3frqpsgqqq0jes34fpyv
https://www.flockstr.com/event/naddr1qqyxzcf4xuuxge33qgsr32el8srqx2hnv56evlykh3zw6a9ydmtky4v7ndz6yagy5pmzjxqrqsqqql9nc8gw9k

one older event:
https://www.flockstr.com/event/naddr1qqyxzvnpvyuxydenqy8hwumn8ghj7mn0wd68ytnddaksygpc4vlncpsr9tek2dvk0jttc38dwjjxa4mz2k0fk3dzw5z2qa3frqpsgqqq0jesz8e3mt