images not showing

in the latest version of FC (3.0.0) i can't add images (i.e. invisible) in items.

did you put your image in template position ?
i think you need to read tutorial you are lost because you forgot basic flexicontent concept
www.flexicontent.org/documentation/tutorials.html

image shows not in core fields of template. How do i add?

i have created the field 'Images' and added to the template.
In the tab 'Article (details) i get an 'Add Image' text.
When i want to select the image, it gets crosslined and red and will not display.

Hello

if images are not found then you will get a message about file missing

since you do not get, the next reasons is because the image is not readable via URL (e.g. due to your htaccess configuration),

if you don't know how to check this,

then you can do this to confirm that the above is happening

despite the thumbnail not showing, select an image into the image field
and save the item form

then post here, the frontend link of the item

Hello, and thank you for your advice.
My website is at: www.collect.one . Maybe you can log in and see what is wrong?

In the sourcecode, image is correct with submaps etc. It gets a class first, which i don't recognize:

<img class="xgckhtpfgacydmevaqbj" src="images/advert.jpg" alt="" />

EDIT: if i select an image which does have a thumbnail, the image shows. It therefor must be something what's creating the error generating a thumbnail and not recognizing the image.