I have noticed an error in my Forms where I’m using vLookup. This vLookup gets items from another List which have just passed the 5000 item limit threshold. Now every time I’m going to the tab which shows the vLookup field, there is an error coming up:
Error in query for the field “vLookupEmails”: The attempted operation is prohibited because it exceeds the list view threshold enforced by the administrator.
I found that in 2015 you had updated the spjs-utility.js to handle large lists (SPJS-Utility updated with support for querying large lists) but our spjs-utility.js version is 1.328 and the latest I saw on the download repository was 1.257