Hi Dominique,
I only have 1 Calengoo widget deployed.
Anyway, I did the above process, despite the suspicion that it may not yield any favourable results…
But, the end result is that the first entry without an event was 28 October, and as you can see from the screen shot, the event for that day is "Wednesday, 25 October", an erroneous entry, and the empty date on the following day has a similarly inappropriate entry.
Interestingly, it is only if the date scrolls in from "out of view", does the empty date entry acquire a inappropriate value.
I created a tall agenda widget that kept 28 & 29 October on display, and they remained uncorrupted, and only some November entries which were blank got corrupted as they were, out of view until scrolled in.
If I could turn off the scroll, but since that causes the Widget to disappear, that's not a good choice.
The key is obviously empty days, and the widget render is picking up something to fill in the blank.
I will try a different work-around, as the "Day" widget doesn't quite meet requirements. By setting a 3 day scope on events, removing completed, and just leaving "today" as empty, that may minimise the error occurrence, for at least a week, maybe… or maybe not…
… as soon as "today" scrolls out of sight, it's done for 🙁
/David…