diff --git a/Aftovolio/Halfsplit.hs b/Aftovolio/Halfsplit.hs
--- a/Aftovolio/Halfsplit.hs
+++ b/Aftovolio/Halfsplit.hs
@@ -20,6 +20,7 @@
 import GHC.Real (quot, quotRem)
 import System.IO (getLine, putStr, putStrLn)
 import Text.Show (Show (..))
+import Debug.Trace
 
 -- | Converts the data that is an instance of 'Show' typeclass to be printed in two-column way.
 halfsplit ::
@@ -74,13 +75,13 @@
     (y100s, t10s) = splitAt l2 . concat $ rss
     y10s 
         | r20 == 0 = y100s
-        | otherwise = replicate l0 ' ' : y10s
+        | otherwise = replicate l0 ' ' : y100s
     r1ss = intersperse [replicate l0 ' '] rss -- For groupping with empty lines
     (l3, r30) = (sum . map length $ r1ss) `quotRem` 2
     (y200s, t20s) = splitAt l3 . concat $ r1ss
     y20s
         | r30 == 0 = y200s
-        | otherwise = replicate l0 ' ' : y20s
+        | otherwise = replicate l0 ' ' : y200s
  
 -- | A generalized version of 'halfsplit3G' with the possibility to prepend and append strings to it. These 'String's are not filtered out for the groups of \'={digits}\' from the prepending and appending 'String's.
 halfsplit2G ::
diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,3 +32,7 @@
 
 * Fifth version. Removed +n command line parameter and the descending sorting of the resulting data. Changed the printing behaviour so that there is no longer too long half of the columns as empty one printed. Some code simplification in the module Aftovolio.Halfsplit. Added new constraint type G for specifying that more than two elements should be groupped together as a one whole (with possible inner permutations inside the group) during all the permutations.
 
+## 0.5.1.0 -- 2024-11-18
+
+* Fifth version revised A. Fixed issue with eternal loop in the halfsplit1G function.
+
diff --git a/aftovolio.cabal b/aftovolio.cabal
--- a/aftovolio.cabal
+++ b/aftovolio.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.4
 name:               aftovolio
-version:            0.5.0.0
+version:            0.5.1.0
 
 -- A short (one-line) description of the package.
 synopsis:           An AFTOVolio implementation for creating texts with special phonetic / prosodic properties.
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -124,7 +124,6 @@
         gcd1 = gcd le lb
         ldc = (le * lb) `quot` gcd1
         mulp = ldc `quot` lb
---        max2 = maximum basecomp
         compards = let ff g1 g2 ks = if isWord8Based ks then C1 . g1 . (\(C1 us) -> us) $ ks else  C2 . g2 . (\(C2 us) -> us) $ ks in ff (concatMap (replicate mulp)) (concatMap (replicate mulp)) basecomp
         (filesave,codesave)  
           | null filedata = ("",-1)
@@ -137,7 +136,6 @@
           | not (null argCBs) = filterGeneralConv l argCBs . genPermutationsL $ l
           | null argCs = genPermutationsL l
           | otherwise = decodeLConstraints argCs . genPermutationsL $ l 
---        descending = oneA "+n" argsA
         variants1 = force . uniquenessVariants2GNBL ' ' id id id perms $ ll
     if helpMessage then do 
       hSetNewlineMode stdout universalNewlineMode