Hi 

Whenever I add an apex:tabpanel component to a vf page the new Files related list upload button doesn't upload the selected file.  Once I remove the apex:tabpanel component then Files start uploading

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<apex:page standardController="Account">

    <!-- component causing issue -->
    <apex:tabPanel ></apex:tabPanel>
    
    <!-- classic attachments related list works regardless of apex:tabpanel component-->
    <apex:relatedList subject="{!account.id}" list="CombinedAttachments" />
    
    <!-- new salesforce files related list doesn't work with apex:tabpanel component -->
    <apex:relatedList subject="{!account.id}" list="AttachedContentDocuments" />
    
</apex:page>

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