Hi Johanes,

As this question is old you may have already found a resolution to this issue but I'll offer some insight.

From the screen shots it appears the version in use in V11, since then in V12 there has been extensive updates done to Syracuse that addresses these concerns directly.

There is also a new feature in V12 where you have the ability to clear inactive sessions if you find they are being hung up.

If you have upgraded but still find yourself with these issues please reach out to support to create a case and investigate the reasons why.

Thanks 

Is there a way for a user to clear their own session/locked symbol? As of right now, only our ERP team has access to the "locked symbols" tab. We are looking to make a procedure that works for all users.

The Sage version was used in V9, but we have upgraded the version to V12, so the problem in classic session is no longer an issue.