Can't finish OCLP update from version 2.2.0 to 2.3.1

iMac mid-2011 (12,1) running Sequoia 15.3.1 on OCLP 2.2.0 smoothly, without issues.

I'm trying to update OCLP before updating macOS itself to Sequoia 15.4. It goes through the whole process without issues—downloading the update, root patching, rebooting, etc.

However, after it finishes and I re-open OCLP, it crashes altogether (see image above). I have to reopen the application and OCLP defaults back to version 2.2.0—asking me to update again to version 2.3.1.

I've tried this process a few times, and the update process has crashed at the very last step every single time. Tried both using Wi-Fi and Ethernet cable to download everything, to no avail.

Any ideas or suggestions? Is there any workaround or should I wait for another version of OCLP?

As I've said before, I'm trying to update OCLP before updating the macOS to avoid any conflicts (following Mr. Macintosh's latest video recommendations).

Thanks in advance!