FileMaker Pro Advanced 14.0.4
Windows 8.1 64-bit
AMD A10-4600M 2.30GHz
6 GB RAM
When editing SMTP settings for a Send Mail script step, the port always shows 25. I can change the port number to another, say 587, and save the script. When I reopen the script, it still shows as 25. A coworker, viewing from their MacBook, sees the changed port number. If I run a DDR, it shows the proper port number, but 25 always remains in my GUI. This has made troubleshooting some SMTP errors quite confusing. I tried from one other Windows 8.1 machine, same version of FMPA, not sure of the hardware, and got the same results. This happened on existing files as well as a new one made just to test this problem.
In my experience, the only steps to reproduce are simply to use the same OS and version of FMPA, edit a port number in a send mail step, save, and view the SMTP settings again. I've not seen it function any other way so far.
So far my only work around has been to borrow a Mac, or recreate a new DDR everytime I need to make changes.