diff --git a/plugins/fengyun3_support/fengyun3/module_fengyun_ahrpt_decoder.cpp b/plugins/fengyun3_support/fengyun3/module_fengyun_ahrpt_decoder.cpp
index 3bb02c150..23030e14b 100644
--- a/plugins/fengyun3_support/fengyun3/module_fengyun_ahrpt_decoder.cpp
+++ b/plugins/fengyun3_support/fengyun3/module_fengyun_ahrpt_decoder.cpp
@@ -229,7 +229,7 @@ namespace fengyun3
                 std::memmove(&ber_history1[0], &ber_history1[1], (200 - 1) * sizeof(float));
                 ber_history1[200 - 1] = ber1;
 
-                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##", ber_history1, IM_ARRAYSIZE(ber_history1), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
+                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##1", ber_history1, IM_ARRAYSIZE(ber_history1), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
             }
 
             ImGui::Button("Viterbi 2", {200 * ui_scale, 20 * ui_scale});
@@ -250,7 +250,7 @@ namespace fengyun3
                 std::memmove(&ber_history2[0], &ber_history2[1], (200 - 1) * sizeof(float));
                 ber_history2[200 - 1] = ber2;
 
-                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##", ber_history2, IM_ARRAYSIZE(ber_history2), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
+                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##2", ber_history2, IM_ARRAYSIZE(ber_history2), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
             }
 
             ImGui::Spacing();
diff --git a/plugins/fengyun3_support/fengyun3/module_fengyun_mpt_decoder.cpp b/plugins/fengyun3_support/fengyun3/module_fengyun_mpt_decoder.cpp
index f892e13d9..bc7fdff6c 100644
--- a/plugins/fengyun3_support/fengyun3/module_fengyun_mpt_decoder.cpp
+++ b/plugins/fengyun3_support/fengyun3/module_fengyun_mpt_decoder.cpp
@@ -228,7 +228,7 @@ namespace fengyun3
                 std::memmove(&ber_history1[0], &ber_history1[1], (200 - 1) * sizeof(float));
                 ber_history1[200 - 1] = ber1;
 
-                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##", ber_history1, IM_ARRAYSIZE(ber_history1), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
+                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##1", ber_history1, IM_ARRAYSIZE(ber_history1), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
             }
 
             ImGui::Button("Viterbi 2", {200 * ui_scale, 20 * ui_scale});
@@ -249,7 +249,7 @@ namespace fengyun3
                 std::memmove(&ber_history2[0], &ber_history2[1], (200 - 1) * sizeof(float));
                 ber_history2[200 - 1] = ber2;
 
-                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##", ber_history2, IM_ARRAYSIZE(ber_history2), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
+                widgets::ThemedPlotLines(style::theme.plot_bg.Value, "##2", ber_history2, IM_ARRAYSIZE(ber_history2), 0, "", 0.0f, 1.0f, ImVec2(200 * ui_scale, 50 * ui_scale));
             }
 
             ImGui::Spacing();