SAP Portal Theme disconfigured after upgrade to SP10

Dear experts,

   Could you please suggest some solution for this item?

    We are on SAP Netweaver 7.4 and due some problems we faced during this project, we have upgraded from SP level 8 to SP level 10 the SAP Portal components.

    We are using the Ajax framework and using the ESS / MSS solution. After the upgrade, the themes worked well at the entire portal, except to the ESS/MSS Menu XSS, which we configure on SAP backend.

     Already tried to:

• Reimport the themes.
• Configure the theme at new UI Theme design .

Thanks in advance.

Kind regards,