TF as poseStamped is changing

[Ador2]

hey guys, using orbslam2 monocular sometimes spits out different y, check these outputs they are both from the same simulation and initial.... well... everything: here y is negative:

---
header: 
  seq: 13388
  stamp: 
    secs: 972
    nsecs: 236000000
  frame_id: "map"
pose: 
  position: 
    x: -6.61653301628
    y: -0.481447576538
    z: -0.111893122552
  orientation: 
    x: -0.00248761751703
    y: 0.000779075068147
    z: 0.999625442736
    w: -0.0272429630413
---
header: 
  seq: 13389
  stamp: 
    secs: 972
    nsecs: 300000000
  frame_id: "map"
pose: 
  position: 
    x: -6.61575999469
    y: -0.480828229211
    z: -0.112066359357
  orientation: 
    x: -0.00227222304475
    y: 0.000758287425639
    z: 0.99962147271
    w: -0.0274075409438
---
header: 
  seq: 13390
  stamp: 
    secs: 972
    nsecs: 368000000
  frame_id: "map"
pose: 
  position: 
    x: -6.61642443585
    y: -0.481003090998
    z: -0.112192068774
  orientation: 
    x: -0.00235306388596
    y: 0.000827180501587
    z: 0.999622534554
    w: -0.0273599575024
---

and here y is positive:

---
header: 
  seq: 1730
  stamp: 
    secs: 334
    nsecs: 956000000
  frame_id: "map"
pose: 
  position: 
    x: -6.73923487699
    y: 1.70155722934
    z: -0.151763144649
  orientation: 
    x: 0.00178283461538
    y: 0.033923785254
    z: 0.990028578768
    w: 0.136709222501
---
header: 
  seq: 1731
  stamp: 
    secs: 334
    nsecs: 988000000
  frame_id: "map"
pose: 
  position: 
    x: -6.73982137557
    y: 1.70241165084
    z: -0.150960128611
  orientation: 
    x: 0.00158696851435
    y: 0.0345710241416
    z: 0.990011497272
    w: 0.136673190822
---
header: 
  seq: 1732
  stamp: 
    secs: 335
    nsecs:  20000000
  frame_id: "map"
pose: 
  position: 
    x: -6.73916918961
    y: 1.70191212379
    z: -0.151252794634
  orientation: 
    x: 0.00183299876932
    y: 0.034341660749
    z: 0.990027035488
    w: 0.136615370491
---

[Ador2]

I thought that commenting out Lines:609&610 in Tracking.cc would solve this but i was wrong:

// Set Frame Poses
   mInitialFrame.SetPose(cv::Mat::eye(4,4,CV_32F));
   cv::Mat Tcw = cv::Mat::eye(4,4,CV_32F);
   /*Rcw.copyTo(Tcw.rowRange(0,3).colRange(0,3));
      tcw.copyTo(Tcw.rowRange(0,3).col(3));*/
    mCurrentFrame.SetPose(Tcw);

any kind of help would be appreciated