PPP Interface Tab - 0 items out of 21 without filter

Hey,

there is regognized a strange prompt in the PPP Interface tab: It states “0 items out of 21”, but there is no display filter akctivated. This occurs with ROS version 7.13 (7.12.1 is also affected). With ROS version 6.49.8 on another device there is a fixed gap of 14 items.
Has anyone an idea, what it could be? Bug?
mt-prob.jpg