ZxChat 1.26 with Portal, not starting

Hello.

After an upgrade of ZeXtras, all users using the portal feature (zimbraFeaturePortalEnabled) can't have the ZxChat anymore. It doesn't appear even if it was on the docker mode or not.

When I disable the portal of the user, ZxChat come back.

Same problem on Zimbra 8.6 (FOSS) and 8.0.9 (FOSS).

Any idea ?

Thanks