XG 17.1.0 GA firmware upgrade breaks MTA

I have just tried the upgrade to 17.1.0 GA firmware version, but it breaks MTA.

On the main screen comes up with MTA service DEAD.

Tried reverting to Legacy mode and then back to MTA mode, but that didn't work.

In fact in legacy mode it then reported service SMPTD 'stopped' and one other service I cant recall at the moment.

I see there was a related bug fix in the beta 2 version so thought it would be OK.

But caution if you rely on MTA.

I have reverted to MR8 for now.