2585175 - Setting Default Transport Request Information from Launchpad Designer fails when saving

Chrome console shows the error below:

jquery.sap.global-dbg.js:1022 2018-01-03 15:32:32.291665 Call to success handler failed: Cannot create property '__metadata' on string '{"__metadata":{"type":"TRANSPORT.WorkbenchRequest"},"id":"GX9X900241","description":"Default-Workbench for Launchpad-Designer","isDefaultRequest":true}' - TypeError: Cannot create property '__metadata' on string '{"__metadata":{"type":"TRANSPORT.WorkbenchRequest"},"id":"GX9X900241","description":"Default-Workbench for Launchpad-Designer","isDefaultRequest":true}'
    at sap.ui2suite.srvc.CatalogService.updateWorkbenchRequest (https://www.myCompany.com/sap/bc/ui5_ui5/sap/ARSRVC_UPB_ADMN/sap/ui2suite/admin/SuiteCatalog.js?eval:214:33)
    at eval (https://www.myCompany.com/sap/bc/ui5_ui5/sap/ARSRVC_UPB_ADMN/sap/ui2suite/admin/transport.js?eval:146:66)
    at Object.sap.ui2.srvc.call (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/sap/ushell_abap/bootstrap/abap.js:26:1861)
    at z (eval at evalModuleStr (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/~20170927061300~/sap-ui-core.js:175:7972), <anonymous>:120:5706)
    at eval (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/~20170927061300~/sap/ui/thirdparty/datajs.js?eval:17:12670)
    at XMLHttpRequest.p9 (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/~20170927061300~/sap/ui/thirdparty/datajs.js?eval:17:20447)
    at s.E.dispatch (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/sap/ushell_abap/bootstrap/abap.js:2:2621)
    at XMLHttpRequest.X.handleEvent (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/sap/ushell_abap/bootstrap/abap.js:2:3737)
    at XMLHttpRequest.h [as _fnHandler] (https://www.myCompany.com/fiori9/sap/public/bc/ui5_ui5/resources/sap/ushell_abap/bootstrap/abap.js:2:3996) sap.ui2.srvc

SAP Fiori
SAP_UI 7.52
SAP UI5 1.48.9

Designer, customizing request, workbench , KBA , CA-UI2-INT-BE , Please use CA-FLP-ABA , Problem