Hi @
I consulted a colleague about outlook and then successfully embedded outlook's calendar into SharePoint.
However, the names and colors of the attachments in the calendars are normal in my test.
However, we can work together to narrow down and resolve the situation. So, please kindly provide more information below to let us work further.
1.Are other users facing the same problem? View through another computer or account.
2.Whether all SharePoint site page have the same problem? You could create a new site page to check.
3.Check if the same issue occurs with other SharePoint site collections.
4.You could try to clear browser cache then restart it.
5.Try to use a different browser or your browser's InPrivate mode to see if the same error occurs.
Your time and patience is much appreciated. If there is any other assistance I can provide, please feel free to let me know.
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