timmse
6
I’m glad you were able to spot the culprit 
The mobile menu issue seem to be the same as this one, but in the offcanvas:
Something like this should work:
%root%.brxe-offcanvas[data-direction=left] .brx-offcanvas-inner {
height: calc(var(--bricks-vh, 1vh)*100 - 102px);
flex-direction: row;
}