I tried this process again and I think I have narrowed it down. I made a simple table in odt and successively edited/saved/closed it as a doc. Each time adding colors, bullets, rows etc. 7 times in all. All was okay. On the 8th time I centered the table (Using Table Properties) - when I re-opened , it had disappear altogether. See attached doc. This may help narrow down the issue.
I tried this process again and I think I have narrowed it down. I made a simple table in odt and successively edited/saved/closed it as a doc. Each time adding colors, bullets, rows etc. 7 times in all. All was okay. On the 8th time I centered the table (Using Table Properties) - when I re-opened , it had disappear altogether. See attached doc. This may help narrow down the issue.