I know nothing but collected a few threads for you anyway. I think this is by design, see the post here:
There is a discussion about off season plans with strength over here:
There is also the option to add a strength block to your training plan, if you absolutely know what you are doing, but I - personally - wouldn‘t do it.
Another option would be to go the custom plan route:
Other option: Treat your test-week in the plan with strength as the event week. Prepare for a Full Frontal after your event - with enough rest in between.
Or just compare and possibly switch out the plans in the last couple of weeks if they are too different.