"Error completing render" [Elements 2025]

Hi,

since I have Elements 2025, I have troubles when rendering. The message "error completing render" (screenshot attached).

The timestamp is given. So far, it was always at a cut/between two adjacend videos.

Most common source: there is invalid transition, e.g. a movie transition at the very end of a clip. So I cut a but and then it works (transition is shown striped in the invalid section)

But there are also cases in which two adjacend videos without any transition or with a vialid transition and I just do not know what to do.

Even worse: it is unreasonanle. I just have a film, in which it processed up to minute ten (a cut), then the error. When trying again, new errors occur at earlier cuts, first around Minute 2, next try at the first cut in Second 14.

With the previous Elements 2022 it worked, also invalid cuts were just ignored.

I do not know what to do. It is very frustrating. Even if there are clear invalid cuts, there should be a way to check it before. Otherwise 45 Minutes of processing is lost until an error in Minute 45 or so.

I cannot see any impact of the error. In the rendered preview everything looks and works fine. No error there when rendering.

Has anyone an idea? Any help is highly appreciated!