We are currently evaluating this issue for a fix in a future service pack.
Steps to Duplicate
1. Navigate to prospect mapping. 2. Observer blank page, chrome console throws below errors: bbui-ext-jquery-min.js.636352911803050481_bbcf.ashx:40 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/. xhr @ bbui-ext-jquery-min.js.636352911803050481_bbcf.ashx:40 mapcontrol.ashx Failed to load resource: the server responded with a status of 500 (Internal Server Error)