We're happy to announce that the fix for this issue is now available in the latest update of InDesign - version 17.2 that is available to download from Creative Cloud Desktop application.
Please update to this latest InDesign version to get the fix.
Adobe InDesign team
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Here is a quick work around for the disappearing text problem. Open the "Story" dialogue box under the TEXT menu. Using the Optical Margin Alignment check box, toggle it each time the your text disappears and it will reappear. It's a pain in the back side still, but it's at least as quick and easy as any other fix and less obtrusive!