If I drag a table bottom border down to increase its height, and then add just enough lines above the table to cause the table to get pushed to a new page, the height of the table is lost and it reverts to what I would call the default height. If I add additional lines above the table once on a new page, the table height is recovered. Also a hard page break works fine and does not affect the temporary table height issue.
WPRichText 9.1.820