Oscam no longer opening channels

Im having problems with oscam opening channels that dont roll keys and used to have no problem opening. Dm 900 dream elite latest ver of oscam emu 11576. This transponder doesnt show a hash value in log. The emu stops. Here is a log restarting oscam on that channel


2020/03/02 16:27:11 00000000 s **** OSCam << cardserver log switched, version 1.20_svn, build r11532-797 (arm-newnigma2-linux-gnueabihf)
2020/03/02 16:27:11 00000000 s (main) System name = Linux
2020/03/02 16:27:11 00000000 s (main) Host name = dm900
2020/03/02 16:27:11 00000000 s (main) Release = 3.14-1.17-dm900
2020/03/02 16:27:11 00000000 s (main) Version = #1 SMP Fri Jan 5 18:54:00 UTC 2018
2020/03/02 16:27:11 00000000 s (main) Machine = armv7l
2020/03/02 16:27:11 00000000 s (main) Stb model = dm900
2020/03/02 16:27:11 00000000 s (main) creating pidfile -r with pid 8583
2020/03/02 16:27:11 00000000 s (emu) OSCam-Emu version 797
2020/03/02 16:27:11 00000000 s (config) userdb reloaded: 1 accounts loaded, 0 expired, 0 disabled
2020/03/02 16:27:11 00000000 s (main) signal handling initialized
2020/03/02 16:27:11 00000000 s (config) 16 provid's loaded
2020/03/02 16:27:11 00000000 s (config) 221 service-id's loaded in 1 ms
2020/03/02 16:27:11 00000000 s (reader) emutest [constcw] creating thread for device /var/keys/constant.cw
2020/03/02 16:27:11 00000000 s (reader) emulator [emu] creating thread for device emulator
2020/03/02 16:27:11 79694430 p (constcw) Local reader: emutest (file: /var/keys/constant.cw)
2020/03/02 16:27:11 00000000 s (main) waiting for local card init
2020/03/02 16:27:11 79694430 p (constcw) ERROR: Can't open /var/keys/constant.cw (errno=2 No such file or directory)
2020/03/02 16:27:11 79694430 p (reader) emutest [constcw] proxy initialized, server /var/keys/constant.cw:0
2020/03/02 16:27:11 2854CA24 r (reader) emulator [emu] Reader initialized (device=emulator, detect=cd, mhz=357, cardmhz=357)
2020/03/02 16:27:11 59CC41EB h (webif) webif: decompressed 167428 bytes back into 411296 bytes
2020/03/02 16:27:11 59CC41EB h (webif) HTTP Server running. ip=0.0.0.0 port=8888
2020/03/02 16:27:12 2854CA24 r (reader) emulator [emu] card detected
2020/03/02 16:27:13 2854CA24 r (reader) emulator [emu] found card system emu
2020/03/02 16:27:13 2854CA24 r (reader) emulator [emu] THIS WAS A SUCCESSFUL START ATTEMPT No 1 out of max allotted of 1
2020/03/02 16:27:13 2854CA24 r (emu) Reading key file: /etc/tuxbox/config/SoftCam.key
2020/03/02 16:27:13 2854CA24 r (emu) Total keys in memory: W:0 V:0 N:0 I:0 F:11 G:0 P:348 T:0 A:0
2020/03/02 16:27:14 00000000 s (main) init for all local cards done
2020/03/02 16:27:14 00000000 s (emmcache) loading emmcache disabled since no reader is using it!
2020/03/02 16:27:14 00000000 s (emmcache) loading emmstats disabled since no reader is using it!
2020/03/02 16:27:14 00000000 s (anticasc) anti cascading disabled
2020/03/02 16:27:14 20F9230E c (client) plain dvbapi-client granted (linuxsatsupport, au=auto (2 reader))
2020/03/02 16:27:14 20F9230E c (dvbapi) dvbapi channelcache loaded from /etc/tuxbox/config/oscam.ccache
2020/03/02 16:27:14 20F9230E c (dvbapi) Detected /dev/dvb/adapter0/demux0 Api: 0, userconfig boxtype: 1 maximum number of filters is 64 (oscam limit is 64)
2020/03/02 16:27:14 20F9230E c (dvbapi) Detected /dev/dvb/adapter0/ca0 device, total available descramblers: 8
WebIf: No data received from client 192.168.1.180. Closing connection.


I have good signal and have rescanned the channels and they scan in?
Any ideas?

Oscam finally showed a channel hash that does not match previous one.
Lnb drift? Changing channel hash cured it but on this transponder oscam live log still acting weird

That's what's strange. The emu finally got enough data to show ch hash. When I corrected it the channel works fine but live log doesnt show the emu decoding in real time like normal.