Dates Changing During Import
I am importing a list of dates into the Forecast Close Date for my Opportunities and the system is taking a day off for those in months 2 (Feb) to 10 (Oct), but not for months 1, 11 or 12. ie 06/01/20 becomes 05/31/20 (31st May) but 11/01/20 stays the same (1st Nov).
All dates are first of the month so are ending up in the wrong month. Behaviour is not consistent so cannot simply add a day prior to import. Dates are in correct (US) format, tried both Excel and CSV (UTF-8) formats.
I've also updated to the latest User Experience and am using Chrome browser. Any ideas?