O365 accounts creating meetings on-premise room mailboxes show as tentantive

Our hybrid environment has Exchange 2010 SP3 with O365. Our room mailboxes are on-premise. When users in the cloud create a new meeting and use the on-premise room mailbox as a resource, it shows up as tentative. When users that are on-premise create a new meeting, it's automatically accepted as it should be. When cloud users create meeting in a cloud based room mailbox, it's accepted automatically. Is there a fix for this?
HELFITAsked:
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HELFITAuthor Commented:
I do see that as the same problem, but see no real solution. With our hybrid environment, I don't understand how the mail from our cloud users cannot be considered internal.
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