XG1v4 Reliability?

I was having a problem with my XG1v4 frequently after being turned on displaying a "... One moment please" message on screen and nothing else. This problem had been going on for several months. I reported this problem in another post and Xfinity support worked with me to get my XG1v4 replaced. I swapped-out my suspected bad DVR with the replacement on 6/14/2026. Since then, I have not seen the "... One moment please" message. That is the good news. The bad news is that the playback of recorded programs has been highly erratic. I frequently am watching a recording, and I get say 30% into it and suddenly the transport jumps to the end and I get the message "You appear to have completed watching <name of show>; would you like to delete it?". I get various other erratic behavior where I am intermittently not able to rewind to the beginning of a recording or I'll be rewinding and the transport jumps suddenly to the end.

So, my question is: Are XG1v4 DVR's operating reliably for other DVR users? My understanding is that the XG1v4 is no longer being manufactured; thus, if your unit is defective and needs to be replaced, the only option is to replace it with a refurbished unit. Are there differences in the capabilities of some units, ie amount of internal storage space, or how it determines whether to record/playback from internal storage or from cloud storage?

Would I be better off with an X1 DVR? Do those work any better?