Some demos fail to play in software rendering mode.

[Armacadia]

Attempting to play demos that are recorded on certain maps in software rendering mode causes the game to become completely unresponsive until it's killed via Task Manager.
Launching and playing on the map in software mode works fine, the demo also plays in OpenGL without problems.
This happens on both the legacy branch and HL25

An example affected demo: here (it's for Opposing Force, not sure if other mods are affected as well)

Steam system report down below (I couldn't figure how to collapse text on GitHub, sorry).

**Computer Information:**
Manufacturer: INTEL_
Model: D865GLC_
Form Factor: Desktop
No Touch Input Detected

**Processor Information:**
CPU Vendor: GenuineIntel
CPU Brand: Intel(R) Pentium(R) 4 CPU 3.00GHz
CPU Family: 0xf
CPU Model: 0x4
CPU Stepping: 0x1
CPU Type: 0x0
Speed: 2992 MHz
2 logical processors
1 physical processors
Hyper-threading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Unsupported
SSE4a: Unsupported
SSE41: Unsupported
SSE42: Unsupported
AES: Unsupported
AVX: Unsupported
AVX2: Unsupported
AVX512F: Unsupported
AVX512PF: Unsupported
AVX512ER: Unsupported
AVX512CD: Unsupported
AVX512VNNI: Unsupported
SHA: Unsupported
CMPXCHG16B: Unsupported
LAHF/SAHF: Unsupported
PrefetchW: Unsupported

**Operating System Version:**
Windows 7 (32 bit)
NTFS: Supported
Crypto Provider Codes: Supported 311 0x0 0x0 0x0

**Video Card:**
Driver: Intel(R) 82865G Graphics Controller
DirectX Driver Name: ialmrnt5.dll
Driver Version: 6.14.10.4396
DirectX Driver Version: 6.14.10.4396
Driver Date: 9 20 2005
OpenGL Version: 1.1
DirectX Card: Intel(R) 82865G Graphics Controller
VendorID: 0x8086
DeviceID: 0x2572
Revision: 0x2
Number of Monitors: 1
Number of Logical Video Cards: 1
No SLI or Crossfire Detected
Primary Display Resolution: 1600 x 1200
Desktop Resolution: 1600 x 1200
Primary Display Size: 12.60" x 9.45" (15.75" diag), 32.0cm x 24.0cm (40.0cm diag)
Primary Bus Type Not Detected
Primary VRAM: 145 MB
Supported MSAA Modes Not Detected

**Sound card:**
Audio device: Speakers (SoundMAX Integrated D

**Memory:**
RAM: 2030 Mb

**VR Hardware:**
VR Headset: None detected

**Miscellaneous:**
UI Language: English
Media Type: DVD
Total Hard Disk Space Available: 238472 MB
Largest Free Hard Disk Block: 60098 MB
OS Install Date: Sep 19 2024
Game Controller: None detected
MAC Address hash: e0d96868ce232b7f7e954138b0b0dd177086c2b0

**Storage:**
Disk serial number hash: d3281a4f
Number of SSDs: 0
Number of HDDs: 0
Number of removable drives: 0