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As a save workaround we recommend to update older publications in two steps:
First update to version 6.10 R3, and in a second step update to version 7.
If additional software (K4 Server 6.10 R3) is required, then please contact sales@vjoon.com.
vjoon K4 version 7 R3 will include a fix for that problem.
https://support.vjoon.com/viewtopic.php?f=1&t=11444
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