I've just started playing with my new SDS1104X-E (came with the latest firmware installed), and I have a couple of minor bug reports, so I figured this thread might be the place. The first one isn't really a bug, it is just a minor spelling mistake. If you go to save/recall and recall the factory setup, the on-screen pop-up notification (after the operation is finished) uses the word "Defaut" instead of "Default" (I don't remember the full sentence, and I don't want to default my scope at the moment to check). I suggest Siglent engineers just do a search in their language files for this word, in case it's been copy/pasted also to other places.
The other one is a very minor UI bug. If you enable for example channel 1 and 2, and then press the button for channel 2 twice (to turn that channel off), then the oscilloscope automatically lights up the button for channel 1 (as it should), but the soft menu at the bottom of the screen still pertains to channel 2, which has just been turned off. To get the correct menu for channel 1, you need to press the button for channel 1 again.
It would be natural if the soft menu actually followed the channel button that is lit (unless of course some other menu is used). Not really a problem, just slightly illogical.
I also have a feature request, and that is to have two math channels, where the second math channel can be used for less demading operations (not FFT, obviously). The main reason for this wish is to be able to use all four channels to act as two "poor man's differential probes". A second math channel would allow this, and would be very nice to have, even if this method has obvious limitations if high accuracy is needed.