diff --git a/include/xrpl/shamap/SHAMapNodeID.h b/include/xrpl/shamap/SHAMapNodeID.h
index 9155b6db39..31473382d6 100644
--- a/include/xrpl/shamap/SHAMapNodeID.h
+++ b/include/xrpl/shamap/SHAMapNodeID.h
@@ -47,6 +47,17 @@ public:
         return id_;
     }
 
+    /**
+     * Get the SHAMapNodeID of a child node at the specified branch.
+     *
+     * @param m  The branch number (0-15) indicating which child to descend to.
+     *           In the SHAMap's 16-way radix tree, each inner node has up to
+     *           16 children, indexed by the corresponding nibble (4 bits) of
+     *           the key at the current depth.
+     * @return SHAMapNodeID of the child node at branch m.
+     * @throws std::logic_error if this node is at the maximum leaf depth (64)
+     *         or if the node's id doesn't match its depth mask.
+     */
     SHAMapNodeID
     getChildNodeID(unsigned int m) const;
 
diff --git a/sanitizers/suppressions/runtime-asan-options.txt b/sanitizers/suppressions/runtime-asan-options.txt
index 42c18d48e1..95a0d7ec7f 100644
--- a/sanitizers/suppressions/runtime-asan-options.txt
+++ b/sanitizers/suppressions/runtime-asan-options.txt
@@ -1,3 +1,4 @@
 detect_container_overflow=0
 detect_stack_use_after_return=0
 debug=true
+halt_on_error=false