phpbb 3.3.3 https error

[321jaber]

Dear community!
We find this ext very usefully.
https://www.phpbb.com/customise/db/extension/topic_solved
last version on git is 2.3.0

We have tested it on phpbb 3.3.3 and PHP 7.4 with https, and it works quite well, except two errors we find:

1. While clicking on green mark "Solved" on main board on the topic subject row, it generates hiperlink to exact post with solution , but there is some ampersand text in generated link so we are loged out and we have to relog.
   https://ibb.co/JCqDSdp
   https://ibb.co/FmYxNgQ

2. there are same issue while marking/unmarking solved posts.
   We have try to fix it, but we cannot find issue in code... So we are looking for help with professionals :-)

We would appreciate any help in getting this add-on up and running!
Thanks!

[321jaber]

Update...
I have tested it strongly and I have found problem ...
It was incorrect cookies configuration on test version of my forum :-)
which lead to show &sid on every page what shouldn't happening if i understand correctly :-)

But still i have go deeeeeper :-), becouse i cant see the option to "unsolved" topic.

[321jaber]

Hello Bryan @tierra , would you please fix this amazing addon?
"Unsolving" doesnt work.
Button disappears afer "solving"

[Hareon]

I am waiting an update for 3.3.11 too.