Running for EventTimes get Event time sequence ERROR then continues.

[BasilBibi]

Should say up front thank you so much for this repo, I used your tables on a passage from Portsmouth to Uruguay.

While running EventTimes for 2026 I see this error message

"Event time sequence ERROR on 27-04-2026 in mp_eventtables.fmt_rise_set"

Looking at the code it does nothing except print that message.

This caused me to worry about the viability of the results.

Can this message be removed, should we fail fast or is some other action necessary to correct the process.

[aendie]

Apologies for the late reply - I was away and had no access to my PC.

I am able to reproduce your fault (running on Windows 11 with Python 3.13.9 and skyfield 1.53 or 1.54;

However running with skyfield 1.49 (which I recommend) there is no error:

The PDF file data for 27-04-2026 appears identical to me.

I might be jumping the gun here, but I think the problem is within skyfield.
I have escalated a problem that I can easily reproduce as ISSUE #1114.
This is a really strange problem as it appears to give different failures depending on whether you're using Windows or Linux.
However I never had any such problems during the development of skyalmanac, and I did a lot of testing with skyfield 1.49.

I am concerned that no active Skyfielder has attempted to run my test program in ISSUE 1114 and verify my findings.

However user nkh-dk has also detected the problem that you are having in Pyalmanac ISSUE #4
(He posted it by mistake in another Repository, but I said leave it there.)

In ISSUE 1086 I have another complaint about skyfield versions above 1.49

Sidenote: you will notice in ISSUE 1114 (and ISSUE 998) the diagrams I am currently working on - to display Planet Visibility.

I compliment you on your voyage from Portsmouth to Uruguay!!! Well done. I'd love to know what vessel you sailed (and its name if it is visible in www.marinetraffic.com)

As they say: Fair Winds and Following Seas!