Issue with MacBook Display Connection to KVM Via Pluggable Hub

[EmBeaux]

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### Setup Details:
- **Monitors:**
- 3, each with HDMI input ports.
- **PC:**
- 1 HDMI out, 2 DP out. (No issues with the setup)
- **Mac (M1 v11.6):**
- 1 USB-C out.
- **Hub (Pluggable):**
- 1 USB-C Thunderbolt in, 1 HDMI Alt out, 2 HDMI DisplayLink out.
- **KVM (3x3 matrix):**
- Inputs: 2 DP and 1 HDMI per group.
- Outputs: 1 HDMI and 2 DP.

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### Configuration:
- **PC to KVM:**
- 1x HDMI to HDMI
- 2x DP to HDMI. (Works fine)
- **Mac to Pluggable Hub:**
- Using Thunderbolt cable.
- **Pluggable to KVM:**
1. DisplayLink HDMI to KVM HDMI
2. DisplayLink HDMI (via active unidirectional HDMI to DP cord) to KVM DP
3. Alt HDMI (via active unidirectional HDMI to DP cord) to KVM DP

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### Problem:
Only the HDMI to HDMI connection works for the Mac. When I switch this to the HDMI Alt output, it stops working. The other two displays (connected via active HDMI to DP cords) are detected by the MacBook but show no screen data. Yet, the PC setup with the KVM works perfectly.

*Any suggestions or fixes would be appreciated.*