PHP Warning string instead of array inside Joomla content plugins, when fieldgroup is displayed using FlexicontentFields::getFieldDisplay()

Hi Flexis!

Joomla 3.4.8
FC: 3.0.13

I have a fieldgroup with 3 fields, 1 textarea and two texts fields. When I show the content in ForntEnd with
echo FlexicontentFields::getFieldDisplay($item, 'quote'); i get these warnings:

Warning: strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\plugins\content\loadmodule\loadmodule.php on line 45
Warning: preg_match_all() expects parameter 2 to be string, array given in E:\xampp\htdocs\joomla\plugins\content\loadmodule\loadmodule.php on line 60
Warning: preg_match_all() expects parameter 2 to be string, array given in E:\xampp\htdocs\joomla\plugins\content\loadmodule\loadmodule.php on line 87
Warning: mb_strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\libraries\vendor\joomla\string\src\phputf8\mbstring\core.php on line 41
Warning: mb_strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\libraries\vendor\joomla\string\src\phputf8\mbstring\core.php on line 41
Warning: mb_strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\libraries\vendor\joomla\string\src\phputf8\mbstring\core.php on line 41
Warning: strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\plugins\content\loadmodule\loadmodule.php on line 45
Warning: preg_match_all() expects parameter 2 to be string, array given in E:\xampp\htdocs\joomla\plugins\content\loadmodule\loadmodule.php on line 60
Warning: preg_match_all() expects parameter 2 to be string, array given in E:\xampp\htdocs\joomla\plugins\content\loadmodule\loadmodule.php on line 87
Warning: mb_strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\libraries\vendor\joomla\string\src\phputf8\mbstring\core.php on line 41
Warning: mb_strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\libraries\vendor\joomla\string\src\phputf8\mbstring\core.php on line 41
Warning: mb_strpos() expects parameter 1 to be string, array given in E:\xampp\htdocs\joomla\libraries\vendor\joomla\string\src\phputf8\mbstring\core.php on line 41

It's weird because they are Joomla Core Warnings.
How can i fix this??

Thanks.

Hello

but i have never tested displaying fieldgroup field using:
FlexicontentFields::getFieldDisplay()

will test,
- on your part check:
a. does it work if you add fieldgroup field in a "layout position" ?
b. is custom HTML parameter enabled in fieldgroup configuration ?

I have enabled custom HTML.
I'm going to check If it work if I add fieldgroup field in a "layout position"

Edit: If enabled default HTML instead of custom, I get the warnings too.
Edit 2: If I assign a position to the fieldgroup in the layout, but I keep showing the field with "FlexicontentFields::getFieldDisplay" the warnings dissapear.

It's weird because the warnings are shown, but the groupfield is displayed correctly.

Hello

the fields inside the FIELDGROUP field need to be created before the fieldgroup

- when using getFieldDisplay() something is not done properly

so this is a bug with custom display of FIELDGROUP field when using ... getFieldDisplay()
i have opened a new bug issue in our bug tracker:
github.com/FLEXIcontent/flexicontent-cck/issues/493