Hello,
this sounds like the bug we just fixed in the newest GOS releases, cf. Greenbone OS 22.04.1 and Greenbone OS 21.04.21 released.
As far as I know the Greenbone Enterprise TRIAL with GOS 22.04.0 is not affected by this issue, so you can try downloading and installing the newest version from Greenbone Enterprise TRIAL - Greenbone Networks.
We will also publish an new TRIAL with GOS 22.04.1 next week.
Since the TRIAL does not support our seamless upgrade technology, there is no way to fix your 21.04.19 TRIAL sadly.