diff --git a/README.md b/README.md
index 9254763..7da3620 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 ![StataMin](https://img.shields.io/badge/stata-2015-blue) ![issues](https://img.shields.io/github/issues/asjadnaqvi/stata-treemap) ![license](https://img.shields.io/github/license/asjadnaqvi/stata-treemap) ![Stars](https://img.shields.io/github/stars/asjadnaqvi/stata-treemap) ![version](https://img.shields.io/github/v/release/asjadnaqvi/stata-treemap) ![release](https://img.shields.io/github/release-date/asjadnaqvi/stata-treemap)
 
 
-# treemap v1.2
+# treemap v1.21
 
 
 This package provides the ability to draw treemaps Stata.
@@ -271,6 +271,10 @@ Please open an [issue](https://github.com/asjadnaqvi/stata-treemap/issues) to re
 
 ## Versions
 
+**v1.21 (22 Nov 2022)**
+- Removed error where duplicate values were causing categories to be dropped.
+- Stablized the sort order to prevent random trees across different runs.
+
 **v1.2 (25 Sep 2022)**
 - Fill intensity control added.
 - Error checks for negative values.
diff --git a/installation/stata.toc b/installation/stata.toc
index a1425d9..8cf9de5 100644
--- a/installation/stata.toc
+++ b/installation/stata.toc
@@ -1,7 +1,7 @@
-v 1.2
+v 1.21
 d 'TREEMAP': A Stata package for treemaps
 d
-d Distribution-Date: 20220925
+d Distribution-Date: 20221122
 d
 d Asjad Naqvi, 
 d asjadnaqvi@gmail.com
diff --git a/installation/treemap.ado b/installation/treemap.ado
index bad6e29..66dff14 100644
--- a/installation/treemap.ado
+++ b/installation/treemap.ado
@@ -1,9 +1,10 @@
-*! Treemap v1.2 (22 Sep 2022)
+*! Treemap v1.21 (22 Nov 2022)
 *! Asjad Naqvi (asjadnaqvi@gmail.com)
 
-* v1.2 (22 Sep 2022): Negative values check. Control over fill intensity.
-* v1.1 (13 Sep 2022): Label, color, title scaling. More options for controls. More checks. Better defaults.
-* v1.0 (08 Sep 2022): First release
+* v1.21 (22 Nov 2022): fixed a bug where duplicate values were causing categories to be dropped.
+* v1.2  (22 Sep 2022): Negative values check. Control over fill intensity.
+* v1.1  (13 Sep 2022): Label, color, title scaling. More options for controls. More checks. Better defaults.
+* v1.0  (08 Sep 2022): First release
 
 cap prog drop treemap
 
@@ -34,9 +35,11 @@ prog def treemap, sortpreserve
 
 	
 qui {	
-	preserve	
+preserve	
 	keep if `touse'
 	
+
+	
 	local length : word count `by'
 	
 	if `length' == 1 {
@@ -50,8 +53,8 @@ qui {
 		
 		collapse (sum) `varlist', by(`var0') 
 		
-		gen var0_v = `varlist'
-		gsort -var0_v
+		gen double var0_v = `varlist'
+		gsort -var0_v `var0'  // stabilize the sort
 	}
 
 	if `length' == 2 {
@@ -75,7 +78,7 @@ qui {
 		collapse (sum) `varlist', by(`var0' `var1') 
 		
 		bysort `var0': egen var0_v = sum(`varlist')
-		gen var1_v = `varlist'
+		gen double var1_v = `varlist'
 		
 		gsort -var0_v -var1_v
 	}	
@@ -109,7 +112,7 @@ qui {
 		
 		bysort `var0': egen var0_v = sum(`varlist')
 		bysort `var1': egen var1_v = sum(`varlist')
-		gen var2_v = `varlist'
+		gen double var2_v = `varlist'
 		
 		gsort -var0_v -var1_v -var2_v
 	}
@@ -118,10 +121,9 @@ qui {
 	gen id = _n		
 
 	egen var0_t = tag(`var0')
-	egen var0_o = group(var0_v) 
-	levelsof var0_o
-	replace var0_o = r(r) - var0_o + 1
-		
+	gen  double var0_o = sum(`var0' != `var0'[_n-1]) 
+	
+	
 	if `length' > 1 {
 		cap drop var1_t
 		egen var1_t = tag(`var0' `var1')
@@ -565,6 +567,7 @@ qui {
 				xsize(`xsize') ysize(`ysize')	///
 				`title' `subtitle' `note' `scheme' `name'
 
+				
 restore		
 }		
 
diff --git a/installation/treemap.pkg b/installation/treemap.pkg
index 484daa7..490ec05 100644
--- a/installation/treemap.pkg
+++ b/installation/treemap.pkg
@@ -1,4 +1,4 @@
-v 1.2
+v 1.21
 d {bf:TREEMAP}: A Stata package for treemaps
 d
 d Requires: Stata version 15 or higher.
@@ -8,9 +8,9 @@ d KW: graphs
 d KW: treemap
 d KW: squarify
 d
-d Distribution-Date: 20220922
+d Distribution-Date: 20221122
 d
-d This  version: 25 Sep 2022
+d This  version: 22 Nov 2022
 d First version: 08 Sep 2022
 d License: MIT
 d
diff --git a/installation/treemap.sthlp b/installation/treemap.sthlp
index 533aa26..ee03398 100644
--- a/installation/treemap.sthlp
+++ b/installation/treemap.sthlp
@@ -1,7 +1,7 @@
 {smcl}
-{* 22Sep2022}{...}
+{* 22Nov2022}{...}
 {hi:help treemap}{...}
-{right:{browse "https://github.com/asjadnaqvi/stata-treemap":treemap v1.2 (GitHub)}}
+{right:{browse "https://github.com/asjadnaqvi/stata-treemap":treemap v1.21 (GitHub)}}
 
 {hline}