This flashing indicator is only visible if a network containing Inventor modules is causing constant field updates. This can occur due to certain viewer interactions that necessitate continuous updates, or it may happen when Inventor field connections form a loop involving at least one ML or macro module field, as this disrupts Inventor's loop detection. If this indicator is visible without any interaction, you should investigate your network, for instance, by using profiling (see Section 17.2.2, “Fields”).

For a possible way to break notification loops see Section 28.4, “Using SyncFloat to Reduce System Load”.