Form shows error when switching from WFP to FS

Summary

Form shows error when switching from WFP to FS

Content

In Workforce we are planning by individual Legal Entitiy, however in Financials we "up-leveled" Legal Entity and we are using "Company Assumptions" instead. 

If I plan in Workforce and then head over to  "Expenses" in Financials (i.e. Trend Based Expense Planning) I am getting an error:

"You are trying to open the form, but cannot because all of the required dimensions are not present"

Then I have to go back to WFP and switch the LegalEntity from i.e LE100 to "Company Assumptions" in order to see the form. I guess the reason is that the system keeps the last used LegalEntity in the Cache, realizes that LE100 is not in the Financials app and gives me an error.