This is in the Plex Game Transcoder.log at about the same instance…
Jun 21, 2021 11:09:17.417 [0x00002cd4] DEBUG - Starting up with core: C:\Users\admin\AppData\Local\Plex Media Server\Game Cores\fceumm_libretro.dll and game: E:\PLEX MEDIA\NES\1942\1942\1942.NES platform: Nintendo Entertainment System.
Jun 21, 2021 11:09:17.422 [0x00002cd4] DEBUG - Parsec: hostname = JEFF_MEDIA
Jun 21, 2021 11:09:17.422 [0x00002cd4] DEBUG - Parsec: ctrl_support = 0
Jun 21, 2021 11:09:17.423 [0x00002cd4] WARNING - Retro: Unhandled env #35
Jun 21, 2021 11:09:17.423 [0x00002cd4] DEBUG - Setting pixel format to RGB565.
Jun 21, 2021 11:09:17.423 [0x00002cd4] INFO - Frontend supports RGB565 - will use that instead of XRGB1555.
Jun 21, 2021 11:09:17.423 [0x00002cd4] WARNING - Retro: Unhandled env #8
Jun 21, 2021 11:09:17.423 [0x00002cd4] DEBUG - Retro: Asked for save directory.
Jun 21, 2021 11:09:17.423 [0x00002cd4] INFO - Loading E:\PLEX MEDIA\NES\1942\1942\1942.NES…
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - PRG-ROM CRC32: 0xC4E8C04A
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - PRG+CHR CRC32: 0x171251E3
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - PRG+CHR MD5: 0x0b66fdf88964235c434daff62837af60
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - PRG-ROM: 2 x 16KiB
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - CHR-ROM: 1 x 8KiB
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - Mapper #: 0
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - Mapper name: NROM
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - Mirroring: Horizontal
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - Battery: No
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - System: NTSC
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - Trained: No
Jun 21, 2021 11:09:17.424 [0x00002cd4] INFO - FCEU_MakeFName: C:\Users\admin\AppData\Local\Plex Media Server\Game Saves\1\937af1326ff647b394bbac7047e1ea6af7de6d5\1\nes.pal
Jun 21, 2021 11:09:17.425 [0x00002cd4] WARNING - Retro: Unhandled env #52
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] WARNING - Retro: Unhandled env #55
Jun 21, 2021 11:09:17.426 [0x00002cd4] INFO - FPS reported as 60.099827.
Jun 21, 2021 11:09:17.433 [0x00002cd4] DEBUG - OpenGL: Creating a context for OpenGL v3.