Tested on both Chrome and Firefox. Bookmark a post or topic, then configure or edit the bookmark and set a custom reminder.
The last custom date time is hidden and appears only when selecting “Custom date and time”. Furthermore, the last custom date time is always the current time
Also changing the custom date time settings will change the last custom date time immediately. I believe that the last custom date time should only be changed after the reminder has been finalized
Clicking on the date textbox does not open the date selector
The relative minute/hour/day/etc selector always immediately changes back to minute after input
The date selector will start working after the relative minute/hour/day/etc has been changed at least once
Are you selecting “Custom” when the bookmark pop-up appears? If not, I think that would be expected behavior.
I actually just can’t change that at all, until the field is filled out.
The only two things from experimenting with it just now that seemed really unexpected to me was that the date/time selector instantly got changed by the relative time picker, even when I cancelled my changes. (It doesn’t visually change until I cancel and reopen, but it does occur) Furthermore, if I manually blanked out the relative field before canceling, then it caused the picker to change to the current time.
I disagree, I open my bookmarks purely to remove them sometimes, and I’d rather it not try to set a reminder when I do that.
Edit: Doh! I misread the OP, Read it again now, and I can’t reproduce your issue with bullet 1. I can now, but you must have not opened the “Custom” date setter on your current page refresh for it to occur.
Personally, I can only reproduce some of these issues. Specifically, the “Last” time appearing only after selecting Custom, and the inability to change the minutes to anything else. However, I can freely type in the relative time box (and it doesn’t disappear), and then the Minutes selector will allow me to change it. I am on mobile however, perhaps some of these are specific to desktop.