Elevator bug

[wrest]

Device: iPhone 6s, iOS 12.3.1 
Phyphox: 1.1.0 build 7650 File format: 1.7
User interface localization -- russian.

In the Elevator experiment, height and velocity do not calculate and do not display (height and velocity windows are empty).
Acceleration records and displays O'k.

RAW data seems to be O'k: pressure and acceleration are recorded.

When exporting data to CSV, height and velocity are just set to zero:

Time (s) "Pressure (hPa)" "Height (m)" "Time (velocity) (s)" "Velocity (m/s)"
0.000000000E0 9.790656281E2 0.000000000E0 5.181720000E-1 0.000000000E0
1.036344000E0 9.790647125E2 0.000000000E0 1.553754500E0 0.000000000E0
2.071165000E0 9.790499115E2 0.000000000E0 2.589340500E0 0.000000000E0
3.107516000E0 9.790016937E2 0.000000000E0 3.625204000E0 0.000000000E0
4.142892000E0 9.789203644E2 0.000000000E0 4.661790500E0 0.000000000E0
5.180689000E0 9.788169861E2 0.000000000E0 5.698143000E0 0.000000000E0
6.215597000E0 9.787117767E2 0.000000000E0 6.778502500E0 0.000000000E0
7.341408000E0 9.785871506E2 0.000000000E0 7.859704000E0 0.000000000E0
8.378000000E0 9.784553528E2 0.000000000E0 8.896252000E0 0.000000000E0
9.414504000E0 9.783283997E2 0.000000000E0 9.932685500E0 0.000000000E0
1.045086700E1 9.782004547E2 0.000000000E0 1.096949350E1 0.000000000E0
1.148812000E1 9.780780792E2 0.000000000E0 1.200612900E1 0.000000000E0
1.252413800E1 9.779764557E2 0.000000000E0 1.304261100E1 0.000000000E0
1.356108400E1 9.779006958E2 0.000000000E0 "" ""

Restarting device (switch off and then boot on), deleting and re-installation the app does not help.