I frequently add Word Document properties so to simplify redundant info across many Word "sections" (like "Company" Name" in footers). But often, upon re-opening a large document file (over 300 pages), some of the properties entered have disappeared. I've solved that by having the info quickly available on the first page, copying, and then re-inserting it in the "Info - Properties - show all properties" box (since "Company" isn't a default property), but things like "Title" or the "Subject" don't go away. Any ideas on what I'm doing wrong (this didn't used to happen - no changes recently that I'm aware of). I'm in a Windows 10 computer using "MS Office 365 ProPlus" 64-bit, with Word version 2003.
Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 10 Pro, 64 bit, Build 18363, Installed 20190825185834.000000-300
Processor: Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz, Intel64 Family 6 Model 94 Stepping 3, CPU Count: 4
Total Physical RAM: 16 GB
Graphics Card: Intel(R) HD Graphics 530, 1024 MB
Hard Drives: C: 463 GB (107 GB Free); D: 931 GB (336 GB Free); E: 4657 GB (1408 GB Free);
Motherboard: Dell Inc. 0N8J4R, ver A01, s/n /1QY0HC2/CN1296366F02CE/
System: Dell Inc., ver DELL - 1072009, s/n 1QY0HC2
Antivirus: PC Matic Super Shield, Enabled and Updated
Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 10 Pro, 64 bit, Build 18363, Installed 20190825185834.000000-300
Processor: Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz, Intel64 Family 6 Model 94 Stepping 3, CPU Count: 4
Total Physical RAM: 16 GB
Graphics Card: Intel(R) HD Graphics 530, 1024 MB
Hard Drives: C: 463 GB (107 GB Free); D: 931 GB (336 GB Free); E: 4657 GB (1408 GB Free);
Motherboard: Dell Inc. 0N8J4R, ver A01, s/n /1QY0HC2/CN1296366F02CE/
System: Dell Inc., ver DELL - 1072009, s/n 1QY0HC2
Antivirus: PC Matic Super Shield, Enabled and Updated