Data Blend not Working Correctly - HP_HI

I’m working on a Sales Dashboard but I came across some problem with Data Blending feature. I merged the tables Historial_Proyectos and Historial_Indicadores with data blend. I maxed out the number of dimensions in Historial Proyectos (10). But now when I want to edit the dimensions of that same table in the data blend, it appears that the maximum of dimensions is 8 not 10.

I tried:

  1. Refreshing the Looker Studio File (Dashboard).

  2. Removing one of the dimensions of the table Historial Proyectos. It seems to work but when I save changes with the new 10 dimensions my charts linked to that data blend crash (I checked that the dimension removed was not one that is in use in those charts).

  3. Closing the window and reopen Looker Studio in Browser.

What i want is to freely edit the data blend without worrying about loosing connection to the charts of the dashboard.

I hope you can help me with this issue, thank you!