@Logan Again, thank you very much for your determined efforts working on this challenging issue. I have just downloaded, installed and tested (on MacBook Air only, so far).
Tested import of single Things tasks to OF4, with and without ‘When’ dates, and with and without ‘Deadline’ dates. I also tested utilising multiple selected tasks. In all cases, tasks are appearing as expected in OF4 inbox, with titles, tags and notes (including links) all successfully mapped to OF4 and appearing correctly.
The difficulty, however, is with date handling…
The three Things tasks I imported individually had various ‘When’ dates (11 Feb 24, 13 Feb 24, and 15 Feb 24), but no ‘Deadline’ dates. In all three cases OF4 incorrectly displayed all ‘Defer’ dates as ‘1/2/2024’ (IE: 01 Feb 24). The same incorrect result was evident on importing three other tasks simultaneously (selected by cmd-clicking the tasks in Things ‘Upcoming’ view).
Two of those six test Things tasks had repeat values - no repeat information was displayed in OF4.
I then individually imported two Things tasks that had both ‘When’ (today, and 12 Feb 24) and ‘Deadline’ (today, and 13 Feb 24) dates. In both cases, OF4 incorrectly displayed the ‘Defer’ date as ‘1/2/2024’ and also incorrectly displayed the ‘Due’ date as ‘1/2/2024’, thus overdue.
I then imported one task that had no ‘When’ date, but only a ‘Deadline’ date (16 Feb 24). In this case, OF4 also incorrectly displayed the ‘Due’ date as ‘1/2/2024’, thus overdue.
In summary - on my system, at least, it appears that ALL Things ‘When’ or ‘Deadline’ dates are being mapped to ‘1/2/2024’ on import to OF4.
I am sure that, in particular, successful imports from Things at Project level will be VERY helpful to many, many users. I’m very grateful for your assistance.