I'm having an issue with my container object. I have two grid containers, with six bar charts in them, in one larger container. Sometimes it works fine, but mostly it drops the layout. See picture below.
As you can see the ones on the top seems to be working fine, however this may variate.
If I jump between the containers or sheets the issue may be resloved or two other charts that worked fine before will have issues.
I think that I would try containers within containers as I think that they are getting confused with the number of elements in each container. Try 2 containers of 3 each within the 1 (if that makes sense).