Safe zone Ring reverts back to HIDDEN status each time MFD is restarted

[Ian Kelly]

We are running an e127 master with e125 and e97 slaves. We operate with a visible 2 cable safe zone ring on our radar display. When we updated to v15.59 we found the ability to run a visible safe zone ring had been removed (per thread on previous tech forum). We then rolled the software back to v13.37, the only other version available. We can run the safe zone ring again, however it reverts to "hidden" status on every startup and has to be reset through the menu system. Prior to the v15.59 upgrade the "SHOW" safezone ring setting was maintained on shutdown, as are all other settings. Is there a way to fix this, or is there another software version we could try, e.g. v12 or v14? Thanks for your input.