So if I understand correctly, you prefill the sheet with dates using a script, but when you change anything unrelated to the date/time, through the app, then the time gets updated?
Yeah, a video would be great. Can you also show what the data looks like in the sheet and what it looks like in the glide data editor before and after you change data in that row through the app? My initial thought is that maybe you aren’t structuring your date/time very well. Glide can do some amazing things with text and create a date out of normal text. It may be misunderstanding the time portion of the date/time you entered on the sheet and converting that text to a date with current time when you edit the row. To understand what I’m talking about, check out this thread: Fun with Dates