diff --git a/stage_data.nf b/stage_data.nf
index beffc16..4d18dbb 100644
--- a/stage_data.nf
+++ b/stage_data.nf
@@ -4,76 +4,37 @@ process STAGE_DATA {
     container 'harbor.cluster.omic.ai/omic/digital-patients/synthea:cudf'
     memory '4 GB'
     cpus 2
+    errorStrategy 'terminate'
 
     script:
     """
-    set +e
     BASE="/omic/eureka/digital-patients"
 
-    echo "=== Cleaning up old _parts directories ==="
-    find \$BASE -name "*_parts" -type d -exec rm -rf {} + 2>/dev/null
-    echo "Cleanup done"
-
-    echo "=== Creating directory structure ==="
+    echo "=== Step 1: Check PVC ==="
+    ls /omic/eureka/ 2>&1 | head -10
+    ls -la \$BASE/ 2>&1 || echo "Base dir does not exist"
+    
+    echo "=== Step 2: Create dirs ==="
     mkdir -p \$BASE/imputed \$BASE/healthy \$BASE/supporting-data/vcf \$BASE/supporting-data/ucsc-liftover \$BASE/supporting-data/genome \$BASE/output
-    echo "Dirs created"
+    ls -la \$BASE/
 
-    echo "=== Current PVC state ==="
-    ls -la \$BASE/ 2>/dev/null || echo "Base dir issue"
+    echo "=== Step 3: Install sshpass ==="
+    conda install -y -c conda-forge sshpass 2>&1 | tail -5
+    which sshpass 2>&1
+    sshpass -V 2>&1
 
-    echo "=== Installing sshpass ==="
-    conda install -y -c conda-forge sshpass 2>&1 | tail -3
-    which sshpass && echo "sshpass OK" || echo "sshpass NOT FOUND"
+    echo "=== Step 4: Test connectivity ==="
+    ping -c 2 nucleus.omic.ai 2>&1 || echo "ping failed"
+    nc -zv nucleus.omic.ai 9100 -w 5 2>&1 || echo "nc failed"
+    
+    echo "=== Step 5: Test scp ==="
+    sshpass -p 'bl3rg3r5' ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p 9100 omic@nucleus.omic.ai "echo SSH_OK && ls /mnt/Avatar/digital_patient/ | head -3" 2>&1
+    
+    echo "=== Step 6: Download one small test file ==="
+    sshpass -p 'bl3rg3r5' scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -P 9100 omic@nucleus.omic.ai:/mnt/Avatar/dd/synthea/supporting-data/vcf/vcf_template.vcf \$BASE/supporting-data/vcf/vcf_template.vcf 2>&1
+    ls -la \$BASE/supporting-data/vcf/vcf_template.vcf 2>&1
 
-    download() {
-        remote="\$1"
-        local_path="\$2"
-        if [ -f "\$local_path" ]; then
-            echo "SKIP (exists): \$local_path"
-            return 0
-        fi
-        echo "Downloading: \$remote -> \$local_path"
-        sshpass -p 'bl3rg3r5' scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -P 9100 "omic@nucleus.omic.ai:\$remote" "\$local_path" 2>&1
-        if [ -f "\$local_path" ]; then
-            ls -lh "\$local_path"
-            return 0
-        else
-            echo "FAILED: \$local_path"
-            return 1
-        fi
-    }
-
-    echo "=== Downloading imputed files ==="
-    download "/mnt/Avatar/imputed/ukbb/imputed/F5_SCHIZO.gwas.imputed_v3.both_sexes.tsv.bgz" "\$BASE/imputed/F5_SCHIZO.gwas.imputed_v3.both_sexes.tsv.bgz"
-    download "/mnt/Avatar/imputed/ukbb/imputed/F5_SCHIZO.gwas.imputed_v3.female.tsv.bgz" "\$BASE/imputed/F5_SCHIZO.gwas.imputed_v3.female.tsv.bgz"
-    download "/mnt/Avatar/imputed/ukbb/imputed/F5_SCHIZO.gwas.imputed_v3.male.tsv.bgz" "\$BASE/imputed/F5_SCHIZO.gwas.imputed_v3.male.tsv.bgz"
-
-    echo "=== Downloading gnomad files ==="
-    download "/mnt/Avatar/digital_patient/gnomad.genomes.v4.1.sites.female.txt" "\$BASE/healthy/gnomad.genomes.v4.1.sites.female.txt"
-    download "/mnt/Avatar/digital_patient/gnomad.genomes.v4.1.sites.male.txt" "\$BASE/healthy/gnomad.genomes.v4.1.sites.male.txt"
-
-    echo "=== Downloading supporting-data files ==="
-    download "/mnt/Avatar/dd/synthea/supporting-data/genome/hg38.fa" "\$BASE/supporting-data/genome/hg38.fa"
-    download "/mnt/Avatar/dd/synthea/supporting-data/genome/hg38.dict" "\$BASE/supporting-data/genome/hg38.dict"
-    download "/mnt/Avatar/dd/synthea/supporting-data/ucsc-liftover/hg19ToHg38.over.chain.gz" "\$BASE/supporting-data/ucsc-liftover/hg19ToHg38.over.chain.gz"
-    download "/mnt/Avatar/dd/synthea/supporting-data/vcf/vcf_template.vcf" "\$BASE/supporting-data/vcf/vcf_template.vcf"
-
-    echo "=== Downloading phenotype file ==="
-    download "/mnt/Avatar/imputed/ukbb/metadata/ukbb_phenotypes.csv" "\$BASE/ukbb_phenotypes_filtered.csv"
-
-    echo "=== Final verification ==="
-    echo "Imputed:"
-    ls -lh \$BASE/imputed/*.bgz 2>/dev/null || echo "  NONE"
-    echo "Healthy:"
-    ls -lh \$BASE/healthy/*.txt 2>/dev/null || echo "  NONE"
-    echo "Genome:"
-    ls -lh \$BASE/supporting-data/genome/* 2>/dev/null || echo "  NONE"
-    echo "Support:"
-    ls -lh \$BASE/supporting-data/vcf/* \$BASE/supporting-data/ucsc-liftover/* 2>/dev/null || echo "  NONE"
-    echo "Small:"
-    ls -lh \$BASE/MANE* \$BASE/regulon* \$BASE/LM22* \$BASE/ukbb* 2>/dev/null || echo "  NONE"
-
-    echo "=== STAGING COMPLETE ==="
+    echo "=== DEBUG COMPLETE ==="
     """
 }