Sharepoint Access Error on Powerapp Startup

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Posted on by noshum

Hello Community,

I have been experiencing a reoccurring error when I first open my Power App (which pulls data currently from a list in Sharepoint). The user images do not properly show within the gallery, and include a small green icon in the top left corner indicating that there is a disconnect to the Sharepoint list. The application uses a gallery/collection to display data filtered for Today. The error I experience when attempting to open Sharepoint is:

Bad Request - Header Field Too Long

HTTP Error 400. A request header field is too long.

My current work around is to reopen a new window (Chrome) and to clear the browsing history. If anyone has suggestions as to why there seems to be a disconnect between the Sharepoint and Power App upon first startup, that would be helpful. Thanks

@SharePoint