diff --git a/resources/profiles/BBL/process/fdm_process_bbl_common.json b/resources/profiles/BBL/process/fdm_process_bbl_common.json
index 9bc03d927..24a8d2df5 100644
--- a/resources/profiles/BBL/process/fdm_process_bbl_common.json
+++ b/resources/profiles/BBL/process/fdm_process_bbl_common.json
@@ -92,7 +92,7 @@
     "support_object_xy_distance": "0.35",
     "tree_support_branch_diameter": "2",
     "tree_support_branch_angle": "45",
-    "tree_support_wall_count": "0",
+    "tree_support_wall_count": "1",
     "detect_thin_wall": "0",
     "top_surface_pattern": "monotonicline",
     "top_surface_line_width": "0.42",
diff --git a/src/libslic3r/TreeSupport.cpp b/src/libslic3r/TreeSupport.cpp
index 66ff20831..a9b06ac67 100644
--- a/src/libslic3r/TreeSupport.cpp
+++ b/src/libslic3r/TreeSupport.cpp
@@ -686,7 +686,7 @@ TreeSupport::TreeSupport(PrintObject& object, const SlicingParameters &slicing_p
     m_raft_layers = slicing_params.base_raft_layers + slicing_params.interface_raft_layers;
         
     SupportMaterialPattern support_pattern  = m_object_config->support_base_pattern;
-    if (m_object_config->support_style == smsTreeHybrid && support_pattern == smpDefault) support_pattern = smpLightning;
+    if (m_object_config->support_style == smsTreeHybrid && support_pattern == smpDefault) support_pattern = smpRectilinear;
     m_support_params.base_fill_pattern      = 
         support_pattern == smpLightning ? ipLightning :
         support_pattern == smpHoneycomb ? ipHoneycomb :