Photo edit stroke colour picker does not work. Truenas, Nextcloud

Using Nextcloud on Truenas. The photo editor colour picker for stroke & shadow for all the tools (text, image, rectangle, pen etc etc) does not work. You can not click on anything.

For the colour picker the cursor changes to a cross when you hover over the colour picker and you can select a colour but on stroke & shadow the cursor does not change to a cross when you hover over the colour picker and you can not select anything.

I have tested with different browsers and on different computers with Windows and/or Linux.