my nvr is 4216-4ks3 and record mode us scheduler and ivs and smd is disabled
old 5442ep ze with grey web panel
This is old 5442..
If You use only DMSS to configure then You probably don't have configured Storage -> Schedule plan at all..
Log at NVR using web browser and check/put screenshots of specified menu.
ps. and do all configuration of NVR / cams using web browser - not DMSS...
this is record plan of my camerawrrr...
this don't even look like DMSS connection to NVR...
but only to camera...
where You store video files? and from which device You playback events?
NVR or camera?
NVR menu should looks like this for each channel (camera):
View attachment 201221
smart codec is disableps. You can also check / disable SmartCodec in Camera -> Encoding menu..
it can create similar problems with skipping playback.