That is controlled by "WAI" action. If WAI was used at all in preset you modify, that action should be somewhere in the preset. And it is better to find it, different "WAI" can start to "fight" otherwise, producing confusing results.
"WAI" action serve 2 purpose, it can define where WAI starts and the number of strips in WAI. Note that that number is just visual effect, in AZ Controller you use just the first WAI strip as reference for other operations (f.e. 7th WAI strip volume).
Check all options of this action, f.e. "initial" will set the number of strips in WAI when preset is loaded (so without any extra operations). So set "tracks" to 8 and "initial", save and reload preset, you will see 8 tracks in WAI.