Requirements Workspace breaks

[DzikiWariat]

Hello everyone,

First of all I would like to mark that I'm not an active user of Squash-tm and I'm not acknowledged with it's functions - I'm setting this for some Profesors at my university.

Everything is working fine until someone wants to view Requirements Workspace panel.
When clicked on item from dropdown list nothing happens. On Safari browser I'm receiving grey website with spinning circle on top "Processing". On Chrome it does not load without any info at all. On Firefox I receive orange warning "An error occured while processing (Details) ". When clicked on it, the popup comes with short info
{"readyState":4,"responseText":"","status":302,"statusText":"Found"}.
Also there is not much in squash-tm.log :

[17-10-25 15:19:12.918] SquashTM - 12618 WARN [http-nio-8090-exec-4] [ServletWebRequest: uri=/squash/requirement-workspace/;client=XXX;session=XXX;user=XX] --- org.hibernate.engine.internal.StatefulPersistenceContext: HHH000179: Narrowing proxy to class org.squashtest.tm.domain.requirement.RequirementVersion - this operation breaks ==

Since then I've upgraded squash-tm from 1.14.1 to 1.16.0

I'm getting out of ideas, I would appreciate any help or directions where should I look for mistake.

[scandel]

Same error here.

I precise Squash-tm is installed on a url beginning by https. It causes me some other troubles when I want to acces to the details of a requirement.

Any ideas, anyone ? Thanks.