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"hand_holding_fingers" doesn't seem to be nesting in spite of instructions. I re-made its toml in hopes that will fix.

svg/hand_holding_fingers.toml

@@ -0,0 +1,13 @@
+# If true, this indicates that the symbol should always have
+
+# a symbol nested within its nesting area(s).
+
+always_nest = true
+
+
+
+# If true, this indicates that the symbol should always
+
+# be nested inside another symbol's nesting area.
+
+always_be_nested = false