The red cross images may appears due to wrong/missing data. A URC file should solve the problem.
Solution 1
In Remote Operator - go to Cache file menu>Create Cache file (*.urc)..
Then Click on RUN.
Solution 2
In VisiLogic – go to project menu>create project file ….> and choose HMI Display tab to create *.urc file Now you can import the created *.urc file in Remote Operator under Cache file menu>Import Cache file