@ilijagl As a workaround you can downgrade to the previous version. You can find the old versions here at the end of the page:
https://wordpress.org/plugins/antivirus/advanced/
Looks like this problem appears on multiple issues within one file. Due to a regression from rewriting the JavaScript in 1.6 only the last “dismiss” button actually works while click listeners of previous buttons get removed in the loop.
Unable to reproduce the problem with one issue per file, even with multiple files.
I’m still using the previous version. I’m waiting for a solution and I believe you can handle it.
Should be fixed with 1.6.1
Briefly tested with different browsers and a couple of simulated findings across multiple theme files (1-3 per file), looks good for me.
Please let us know if you still experience issues.