When you apply a filter in Power BI, and the visualizations turn out blank, some common reasons and suitable troubleshooting steps could be evaluated.
Look for Filter Interactions: The first thing that may be causing the problem is the presence of competing filters on the visuals. In Power BI, the filter may be done at various levels, including visual level, page level, and report level. Check each of them and make sure that they do not fight each other because that may lead to a situation where the visuals have no data to show. For example, if one filter says some values are not included while another filter says to include those values, the visual might have nothing to show.
Examine Data Relationships: In instances when the report consists of several tables, confirm that they are properly linked as required. This is because issues related to these linkages, for example, the presence of inactive links or fields that do not correlate, can result in blank visualizations. Select the “Model” view and check that all the associated relationships have been established appropriately, bearing in mind the cardinalities and active connections for the filters to work effectively.
Examine Source of Incorporation and Logic of Filters: In some cases, the logic behind filter criteria does not capture any data within the context, resulting in the visual being blank. It is prudent to revisit the actual data and ascertain if it has records that satisfy the conditions of the filter. Also, check for all DAX measures associated with the visual, as complex measures may be outside certain filters, resulting in no data. Reducing the measure or deploying DAX Studio for logic sequencing may be useful in isolating the problem.
In conclusion, these processes explain how and why Power BI visuals go blank when applying certain filters and provide suggestions that may be employed to improve them.