Voicemail admin - timezone issue


I’m attempting to set the voice mail for a couple extensions for different time zones
If I make an extension, then go to voicemail admin and add a time zone to the extension the user name is deleted, and I get ‘>’ in its place also, the voicemail password becomes a ‘.’, the email address a ‘>’, the pager address a ‘>’ and all of the email attachment, play CID, play envelope go blank from a yes choice.

PBX Firmware: 5.211.65-9
PBX Service Pack:

Does anyone have any ideas how to fix this?

Thank you