# Lost signals when recording **URL:** \ **Category:** Support\ **Created:** [April 26, 2019, 6:02pm UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290 "2019-04-26T18:02:34Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![tienpham217](https://avatars.discourse-cdn.com/v4/letter/t/e480ec/32.png) [@tienpham217](https://forum.qoitech.com/u/tienpham217)\ **Post date:** [April 26, 2019, 6:02pm UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/1 "2019-04-26T18:02:34Z")
Hi, I have a question regarding attached image. 2 signals lost while recording and as long as I start a new record, the 2 signals went back to normal. Thanks, Tien ![image](https://europe1.discourse-cdn.com/flex017/uploads/qoitech/original/1X/9c3eb8a24fb670fcce87aa6723496d38d7ccdb72.png) ---
**Author:** ![chrfle](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.qoitech.com/chrfle/32/288_2.png) [@chrfle](https://forum.qoitech.com/u/chrfle)\ **Post date:** [April 26, 2019, 8:59pm UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/2 "2019-04-26T20:59:10Z")
Hello Could you provide information of what channels they were, i.e. Main voltage, GPI1, ADC current etc. ---
**Author:** ![tienpham217](https://avatars.discourse-cdn.com/v4/letter/t/e480ec/32.png) [@tienpham217](https://forum.qoitech.com/u/tienpham217)\ **Post date:** [April 29, 2019, 2:53pm UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/3 "2019-04-29T14:53:52Z")
Hi Christer, They were GPI1 and GPI2 signals. Thanks, Tien ---
**Author:** ![bjorn.rosqvist](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.qoitech.com/bjorn.rosqvist/32/238_2.png) [@bjorn.rosqvist](https://forum.qoitech.com/u/bjorn.rosqvist)\ **Post date:** [April 30, 2019, 7:10am UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/4 "2019-04-30T07:10:58Z")
Hi Tien, Could you create a new [case](https://www.qoitech.com/my/cases) in our system and I will help you out there. Best regards, Björn ---
**Author:** ![fchaxel](https://avatars.discourse-cdn.com/v4/letter/f/e95f7d/32.png) [@fchaxel](https://forum.qoitech.com/u/fchaxel)\ **Post date:** [June 26, 2020, 5:35am UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/5 "2020-06-26T05:35:32Z")
Hi, I have exactly the same problem … every time the signal break with 0 values. If I launch another record, this new one is OK for a certain time then another time goes to zero. See here the green record falling to zero, and the red one launched just after that. Firmware & Oti application are the latest one. ![oti](https://europe1.discourse-cdn.com/flex017/uploads/qoitech/original/1X/f1c4456590a0996acd6af30808337b990caa9ea7.png) an interesting thing, when I pan/zoom the green record data seems to be all zero ![oti2](https://europe1.discourse-cdn.com/flex017/uploads/qoitech/original/1X/4d1ef7c8b311239a7f47f708b8b88cfcf7ac4abe.png) and by exporting data into csv file, one can see a problem with the data themself : see a partial green curve export then after red curve. Green data Timestamp (S),Arc Main Current (A),Arc Main Voltage (V),Arc Main Energy (J) 0,0,2.998,0 0.00025,0,0 0.0005,0,0 0.00075,0,0 0.001,0,2.998,0 0.00125,0,0 0.0015,0,0 0.00175,0,0 0.002,0,3,0 0.00225,0,0 0.0025,0,0 0.00275,0,0 0.003,0,3,0 0.00325,0,0 0.0035,0,0 0.00375,0,0 0.004,0,3.005,0 0.00425,0,0 0.0045,0,0 0.00475,0,0 0.005,0,3.006,0 0.00525,0,0 0.0055,0,0 0.00575,0,0 0.006,0,3.003,0 0.00625,0,0 0.0065,0,0 0.00675,0,0 0.007,0,3.007,0 Red data Timestamp (S),Arc Main Current (A),Arc Main Voltage (V),Arc Main Energy (J) 0,7.043e-06,3,5.28225e-09 0.00025,7.043e-06,5.28225e-09 0.0005,7.269e-06,1.0734e-08 0.00075,7.383e-06,1.627125e-08 0.001,7.444e-06,3,2.185425e-08 0.00125,7.435e-06,2.744537e-08 0.0015,7.524e-06,3.310342e-08 0.00175,7.864e-06,3.901715e-08 0.002,7.727e-06,3.008,4.482785e-08 0.00225,7.524e-06,5.047837e-08 0.0025,7.284e-06,5.594866e-08 0.00275,7.095e-06,6.1277e-08 0.003,7.095e-06,3.004,6.660535e-08 0.00325,7.69e-06,7.238438e-08 0.0035,7.699e-06,7.817018e-08 0.00375,8.204e-06,8.433549e-08 0.004,8.039e-06,3.006,9.03768e-08 0.00425,7.505e-06,9.600367e-08 0.0045,7.354e-06,1.015173e-07 0.00475,7.255e-06,1.069568e-07 0.005,7.194e-06,2.999,1.123505e-07 0.00525,6.93e-06,1.175514e-07 0.0055,6.991e-06,1.227982e-07 0.00575,7.241e-06,1.282325e-07 0.006,7.421e-06,3.002,1.33802e-07 0.00625,8.45e-06,1.401395e-07 0.0065,1.0007e-05,1.476448e-07 System Info is ![oti3](https://europe1.discourse-cdn.com/flex017/uploads/qoitech/original/1X/b2596f9ef6da3e092251de6857406fb3b9e6ed1c.png) ---
**Author:** ![bjorn.rosqvist](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.qoitech.com/bjorn.rosqvist/32/238_2.png) [@bjorn.rosqvist](https://forum.qoitech.com/u/bjorn.rosqvist)\ **Post date:** [June 29, 2020, 6:56am UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/6 "2020-06-29T06:56:06Z")
Hi fchaxel, welcome to the forum! This seems strange and we have not seen this before. Could you create a [case](https://www.qoitech.com/my/cases) in our case system with a more detailed description how your setup looks like and also add the otii project file there. When the analysis is done, I will post the outcome here in this forum. Best regards, Björn ---
**Author:** ![bjorn.rosqvist](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.qoitech.com/bjorn.rosqvist/32/238_2.png) [@bjorn.rosqvist](https://forum.qoitech.com/u/bjorn.rosqvist)\ **Post date:** [July 2, 2020, 3:13pm UTC](https://forum.qoitech.com/t/lost-signals-when-recording/290/7 "2020-07-02T15:13:55Z")
Hi, I promised a note regarding this issue. The strange behavior disappeared when folder for temporary project files was changed to a local folder. This is done in File -\> Preferences -\> Open project folder Best regards, Björn