In CMDB Visualizer, when you apply a Filter which filters "External Organizations", the graph still shows an external organization CI if it is connected another CI. This is by design.
Please see Figure 1 with No Filter applied which shows External Organizations Asset A, Asset B & Asset C:
Figure 1:
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Set up the filter to filter out external organizations as shown in Figure 2:
Figure 2:
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Figure 3:
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Figure 4:
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Now apply the filter ?no org? and ensure Level 2 is selected. Asset A is an external organization which should not appear on Visualizer, however, it appears as shown in Figure 5:
Figure 5:
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