uTrack-X32 recording suddenly stops!

So, here’s the setup and test resault:

Hard disk Toshiba SSD 1Tb USB 3
Formatted directtly from card
X32 with 32/32 card setup
x32 firmware 3.08
Card, X32-rack and Airport Express connected to ethernet switch
no software used or opened during the test

Take 001 just to see that recording starts
Take 002 was the long test. Started 16:43 and that has stopped by itself at 20:13
Take 003 was only to test that it would start to record again after hitting the rec-button

(16:43:01) -> Fw:3865 HwVs:2
(16:43:01) -> Device type:Hard Drive, Vendor:TOSHIBA , ProductId:External USB 3.0, Rev:0
(16:43:01) -> Start prepare pre-recording
(16:43:03) -> Date 16-01-18
(16:43:03) -> Created Folder : /MultiTrack/_TempTake0001
(16:43:03) -> SR:48000 depth:24: ActiveTracks:32
(16:43:03) -> StreamingChannelMode set to Recording… NoChange!
(16:43:03) -> Started pre-recording
(16:43:03) -> Start Recording
(16:43:03) -> Renaming Directory from /MultiTrack/_TempTake0001 to /MultiTrack/Take0001
(16:43:03) -> Entered Recording State
(16:43:03) -> Next Gapless recording file created : MultiTrack/Take0001/Take0001(0002).wav
(16:43:32) -> Button REC Long pressed: Stopping recording Now
(16:43:32) -> Exiting Recording State

(16:43:35) -> Fw:3865 HwVs:2
(16:43:35) -> Device type:Hard Drive, Vendor:TOSHIBA , ProductId:External USB 3.0, Rev:0
(16:43:35) -> Start prepare pre-recording
(16:43:35) -> Date 16-01-18
(16:43:35) -> Created Folder : /MultiTrack/_TempTake0002
(16:43:35) -> SR:48000 depth:24: ActiveTracks:32
(16:43:35) -> StreamingChannelMode set to Recording… NoChange!
(16:43:35) -> Renaming Directory from /MultiTrack/_TempTake0002 to /MultiTrack/Take0002
(16:43:35) -> Entered Recording State
(16:43:35) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0002).wav
(16:51:22) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0003).wav
(16:59:07) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0004).wav
(17:06:53) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0005).wav
(17:14:38) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0006).wav
(17:22:25) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0007).wav
(17:30:10) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0008).wav
(17:37:55) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0009).wav
(17:45:42) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0010).wav
(17:53:27) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0011).wav
(18:01:13) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0012).wav
(18:08:58) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0013).wav
(18:16:44) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0014).wav
(18:24:30) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0015).wav
(18:32:15) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0016).wav
(18:40:01) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0017).wav
(18:47:46) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0018).wav
(18:55:32) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0019).wav
(19:03:18) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0020).wav
(19:11:03) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0021).wav
(19:18:49) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0022).wav
(19:26:34) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0023).wav
(19:34:20) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0024).wav
(19:42:06) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0025).wav
(19:49:51) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0026).wav
(19:57:37) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0027).wav
(20:05:22) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0028).wav
(20:13:08) -> Next Gapless recording file created : MultiTrack/Take0002/Take0002(0029).wav

(20:19:58) -> Fw:3865 HwVs:2
(20:19:58) -> Device type:Hard Drive, Vendor:TOSHIBA , ProductId:External USB 3.0, Rev:0
(20:19:58) -> Start prepare pre-recording
(20:19:58) -> StreamingChannelMode set to Recording… Executing!
(20:20:01) -> Date 16-01-18
(20:20:01) -> Created Folder : /MultiTrack/_TempTake0003
(20:20:01) -> SR:48000 depth:24: ActiveTracks:32
(20:20:01) -> Started pre-recording
(22:23:42) -> Start Recording
(22:23:45) -> Renaming Directory from /MultiTrack/_TempTake0003 to /MultiTrack/Take0003
(22:23:46) -> Entered Recording State
(22:23:51) -> Next Gapless recording file created : MultiTrack/Take0003/Take0003(0002).wav
(22:24:00) -> Button REC Long pressed: Stopping recording Now
(22:24:01) -> Exiting Recording State