diff --git a/cms/patatrack/cms-patatrack/cms-patatrack-bmk.sh b/cms/patatrack/cms-patatrack/cms-patatrack-bmk.sh
index 290eca401d3443a6db124c39afe6f7917cd9739f..eed2c5c4b55b633c34d7d09d5bbae2977b246279 100755
--- a/cms/patatrack/cms-patatrack/cms-patatrack-bmk.sh
+++ b/cms/patatrack/cms-patatrack/cms-patatrack-bmk.sh
@@ -60,14 +60,22 @@ function validateInputArguments(){
   eval `scramv1 runtime -sh`;
   cd -
 
-  #export LD_LIBRARY_PATH=/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/llvm/9.0.1-pfdnen/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib:/usr/local/nvidia/lib:/usr/local/nvidia/lib64
-  #export SRT_LD_LIBRARY_PATH_SCRAMRT=/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/llvm/9.0.1-pfdnen/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib
+  env | grep LD_LIBRARY_PATH
+  env | grep SRT_LD_LIBRARY_PATH_SCRAMRT
+
+  # FIXME: so far, after having snapshotted cvmfs the LD_LIBRARY_PATH
+  # FIXME: does not contain all path needed as when cvmfs is bind mounted
+  # FIXME: therefore I'm forcing it to be as the correct one
+  export LD_LIBRARY_PATH=/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/llvm/9.0.1-pfdnen/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib:/usr/local/nvidia/lib:/usr/local/nvidia/lib64
+  
+  export SRT_LD_LIBRARY_PATH_SCRAMRT=/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/bmk/cms-patatrack/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/biglib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/lib/slc7_amd64_gcc820:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/cms/cmssw/CMSSW_11_1_0_pre8_Patatrack/external/slc7_amd64_gcc820/lib:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/llvm/9.0.1-pfdnen/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib64:/cvmfs/cms.cern.ch/slc7_amd64_gcc820/external/gcc/8.2.0-bcolbf/lib
 
   # Configure WL copy
-  myecho "info about python"
+  myecho "info about python and tests"
   python --version
   which python
   python -c 'import scipy; print(scipy.__path__)'
+  python -c 'import numpy; print(numpy.__path__)'
   python -c 'from scipy import stats; import numpy as np; x=np.array([1,2,3]); y=np.array([1.1,2,2.9]); print(stats.linregress(x,y).slope)'
   return 0
 }