(Version 0.9.8b) Sanboxie Plus UI No Longer Auto Deletes When Exiting a Sandbox

[Numbat2913]

Describe the bug
A clear and concise description of what the bug is.
When exiting a sandbox and "Auto Delete" is set it no longer works, the sandbox contents remain and has to be manually deleted. This only happens when using the Sandboxie Plus UI, the Sandboxie Classic UI functions correctly when exiting. This issue was introduced in version 0.9.8b as 0.9.8 worked fine. Please note that I have created a new sandbox and only set the "Auto delete content when last sandboxed process terminates" function to test this, running MS Edge, Vivaldi and Firefox and the situation happens with all the browsers on exiting.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'SandMan UI'
2. Click on 'General Options-FileOptions-Select Auto delete content when last sandboxed process terminates'
3. Run 'a browser in the sandbox'
4. Exit

Screenshots
If applicable, add screenshots to help explain your problem.

Expected behavior
A clear and concise description of what you expected to happen.
The Sandbox should automatically empty.

System details and installed software

• What is your Windows edition and version? (Windows 10 Pro 21H1 64-bit)
• What is your current Sandboxie edition and version? (Sandboxie Plus 0.9.8b 64-bit)
• What was your previous Sandboxie version before the update, if any? 0.9.8
• Please mention in which version this bug got introduced, because it acts as a guide for testers and developers. 0.9.8b
• Please mention any security software running in the background, even if the real-time protection is disabled. Windows Security Only

If you have a compatibility issue

• Please add a reference link to the program not working properly in Sandboxie.
• Please consider to take a log and make it available for analysis: https://git.io/Jwj2y

Additional context
Add any other context about the problem here.

Sandboxie configuration
If applicable, consider to attach your Sandboxie.ini configuration by copying the content on https://gist.github.com and sharing the resulting link. If you decide to paste the configuration here, make sure to use the backticks around strings, like in this working example:

My initial sandboxie.ini settings

[GlobalSettings]

.....

[UserSettings_175D0429]

.....

[DefaultBox]

.....

[Coverlin]

Issue already fixed, wait for 0.9.8c as stated here #1296

[Numbat2913]

Thank you :-)