Inconsistent crash when hitting the "exit game" button in the pause menu when testing a room in Basement Renovator

I am on Repentogon+ nightly (43c774b).

For a while now (about 4 months, I'd say), the program used to test and create Isaac rooms, Basement Renovator, has been crashing randomly when pressing the "Exit Game" button on the pause menu. Normally this brings you to the main menu.

This is an inconsistent crash, only happening sometimes when pressing the exit game button.

The crashes do not occur when disabling Repentogon with the -repentogone command.

Disabling mods by pressing tab and continuing to playtest rooms while having Repentogon on will make the game crash when pressing the exit game button.

Reproducing the crash is difficult, as it can take many room tests to get a crash.
Sometimes retesting the same room when a crash happens does not lead to a crash as well, making reproduction VERY weird.

The log of the crash.

log.txt

Video of the crash happening.

https://github.com/user-attachments/assets/3431ca80-5bbd-493c-ad44-a4dcaa2769b3

If it makes any difference, I am running the source version of Basement Renovator.

Start by reviewing the attached log.txt and crash video, then compare behavior in Basement Renovator with Repentogon enabled and with the -repentogone command. Focus on the pause-menu "Exit Game" path during room testing, including after disabling mods with Tab. Done means identifying a reliable cause or reproduction for the intermittent crash.