diff --git a/src/libslic3r/SLA/Hollowing.cpp b/src/libslic3r/SLA/Hollowing.cpp
index c4a616d93..0dd9436a1 100644
--- a/src/libslic3r/SLA/Hollowing.cpp
+++ b/src/libslic3r/SLA/Hollowing.cpp
@@ -97,7 +97,7 @@ std::unique_ptr<TriangleMesh> generate_interior(const TriangleMesh &   mesh,
         _generate_interior(mesh, ctl, hc.min_thickness, voxel_scale,
                            hc.closing_distance));
     
-    if (meshptr) {
+    if (meshptr && !meshptr->empty()) {
         
         // This flips the normals to be outward facing...
         meshptr->require_shared_vertices();
diff --git a/src/libslic3r/SLA/ReprojectPointsOnMesh.hpp b/src/libslic3r/SLA/ReprojectPointsOnMesh.hpp
index fa919a117..702d1bce1 100644
--- a/src/libslic3r/SLA/ReprojectPointsOnMesh.hpp
+++ b/src/libslic3r/SLA/ReprojectPointsOnMesh.hpp
@@ -28,17 +28,25 @@ void reproject_support_points(const EigenMesh3D &mesh, std::vector<PointType> &p
 inline void reproject_points_and_holes(ModelObject *object)
 {
     bool has_sppoints = !object->sla_support_points.empty();
-    bool has_holes   = !object->sla_drain_holes.empty();
 
-    if (!object || (!has_holes && !has_sppoints)) return;
+    // Disabling reprojection of holes as they have a significant offset away
+    // from the model body which tolerates minor geometrical changes.
+    //
+    // TODO: uncomment and ensure the right offset of the hole points if
+    // reprojection would still be necessary.
+    // bool has_holes    = !object->sla_drain_holes.empty();
 
-    EigenMesh3D emesh{object->raw_mesh()};
+    if (!object || (/*!has_holes &&*/ !has_sppoints)) return;
+
+    TriangleMesh rmsh = object->raw_mesh();
+    rmsh.require_shared_vertices();
+    EigenMesh3D emesh{rmsh};
 
     if (has_sppoints)
         reproject_support_points(emesh, object->sla_support_points);
 
-    if (has_holes)
-        reproject_support_points(emesh, object->sla_drain_holes);
+//    if (has_holes)
+//        reproject_support_points(emesh, object->sla_drain_holes);
 }
 
 }}