Forgetting to active extension...

[Blackcloud6]

I set up a scenario and discovered that I forgot to activate a leader and aircraft extension.  If I save and exit and then activate the extensions, restart the scenario, the tab and box for these extensions show up yet there are no counters.  I then try "refresh counters" but get this error "- Unable to run Refresh, module was saved with older vassal version. Edit and save module with latest vassal version first."   If I try to edit and save the module, the same thing happens.

Is there any way to fix this issue of the counters not showing up without having to start the scenario all over from ground up?