Solved When creating new subjet, many toolbar functions not working with helix 3 templa

Hi,

i come back with my issue, i didn't solve since last year.
my site (last version for all extension):
* joomla 3.8.5
* helix 3 template v2.5.1
* kunena 5.0.13

i installed all extensions on a local machine (ubuntu 17.10) and i didn't configure anything, all extensions are fresh install.

when i create a new subjet, the form is opened but
* the textarea is only one line and not 12
* font list/color list, i can open the popup list but when i try to select a font or a color, the list disappear
==> so i can't change the color for a part of text
==> sometimes, if i go quickly, i can open the list and when the mouse comes on the ColorList, she stays displayed and i can select a color, but it's very difficult to do this.
* i cannot create a link and some othes functions

here is a screenshot


if i use protostar template, it works

how can i make kunena working with helix 3 template ?

need help to add a forum to my website.
But i need to test it in local before doing in my online website

here is a différence between the two sites when i go in "Examin element > Debugger of stylesheet"

generate with protostart (works fine)
/* Kunena Custom CSS */ .layout#kunena [class*="category"] i,
.layout#kunena .glyphicon-topic,
.layout#kunena h3 i,
.layout#kunena #kwho i.icon-users,
.layout#kunena#kstats i.icon-bars { color: #0065d9; } .layout#kunena [class*="category"] .knewchar { color: #48a348 !important; }
.layout#kunena sup.knewchar { color: #48a348 !important; }
.layout#kunena .topic-item-unread { border-left-color: #48a348 !important;}
.layout#kunena .topic-item-unread .icon { color: #48a348 !important;}
.layout#kunena .topic-item-unread i.fa { color: #48a348 !important;}
.layout#kunena + div { display: block !important;}
#kunena + div { display: block !important;}
h1, h2, h3, h4, h5, h6, .site-title {
font-family: 'Open Sans', sans-serif;
}
body.site {
border-top: 3px solid #696969;
background-color: #e3e3e3;
}
a {
color: #696969;
}
.nav-list > .active > a,
.nav-list > .active > a:hover,
.dropdown-menu li > a:hover,
.dropdown-menu .active > a,
.dropdown-menu .active > a:hover,
.nav-pills > .active > a,
.nav-pills > .active > a:hover,
.btn-primary {
background: #696969;
}





generate with helix 3 (don't worked correctly)

/* Kunena Custom CSS */ .layout#kunena [class*="category"] i,
.layout#kunena .glyphicon-topic,
.layout#kunena h3 i,
.layout#kunena #kwho i.icon-users,
.layout#kunena#kstats i.icon-bars { color: inherit; } .layout#kunena [class*="category"] .knewchar { color: #48a348 !important; }
.layout#kunena sup.knewchar { color: #48a348 !important; }
.layout#kunena .topic-item-unread { border-left-color: #48a348 !important;}
.layout#kunena .topic-item-unread .icon { color: #48a348 !important;}
.layout#kunena .topic-item-unread i.fa { color: #48a348 !important;}
.layout#kunena + div { display: block !important;}
#kunena + div { display: block !important;}
body{font-family:Open Sans, sans-serif; font-weight:300; }
h1{font-family:Open Sans, sans-serif; font-weight:800; }
h2{font-family:Open Sans, sans-serif; font-weight:600; }
h3{font-family:Open Sans, sans-serif; font-weight:normal; }
h4{font-family:Open Sans, sans-serif; font-weight:normal; }
h5{font-family:Open Sans, sans-serif; font-weight:600; }
h6{font-family:Open Sans, sans-serif; font-weight:600; }
.modal-backdrop {
z-index: 86;
}
.layout#kunena .modal {
position: relative;
}
#sp-top-bar{ background-color:#f5f5f5;color:#999999; }

I found the solution : just use the Crypsisb3 template instead of Crypsis and all works