It's probably not the same bug, just same symptoms. Have you tried version 1.6.1.5? It's just a few days old, and some of the release notes have fan-related fixes (nothing sounds exactly like what you are encountering, but it's worth a try):
Version 1.6.1.5 69.4 MB 2023/05/19
The latest version of GPU Tweak 3 contains a variety of updates, including fixes for fan behavior, profile settings and the functionality of the on-screen display (OSD).
• Optimized the behavior of storing data when using the Profile function.
• Fixed an issue where profile settings were cleared after installing the new version.
• Fixed an issue where profile settings were sometimes invalidated.
• Fixed an issue where the user-defined fan curve could not be set in some cases.
• Fixed an issue where the external fan curve could not be set in some cases.
• Fixed an issue where the external fan control mechanism was ineffective in some cases.
• Fixed an issue where the 0dB button disappeared for some models that support the 0dB function.
• Fixed an issue where Radeon graphics card fans could not be controlled.
• Fixed an incorrect display of framerate target settings in the UI.
• Changed GPU-Z output to display both the ASUS BIOS version and graphics card BIOS version.
• Updated GPU-Z to the latest version.
• Fixed the issue where the Model name appears blank when importing a Profile.
• Corrected the issue of misaligned values displayed for external fans on the UI.
• Addressed customer feedback: GPU Tweak fails to apply any settings at startup (with the "apply settings at startup" option checked).
OSD updates:
• Optimized the layout of the OSD setting page (items other than Monitor Data are collapsed by default, with an aligned layout and wider scrollbar).
• Modified the default color settings of the OSD.
• Added an OSD preview prompt message.
• Fixed an issue where OSD hotkeys may not be triggered.
• Fixed an issue where the OSD Ctrl+X hotkey did not work.
• Fixed an issue where the direction-related hotkey controls for the Memo and Photo functions were reversed.
• Fixed an issue where some DirectX 11 games could not be smoothly closed when the OSD function was enabled.
• Fixed the issue where OSD preview fails to activate after switching between Chinese and English languages.
• Resolved the problem of OSD displaying no data in Multi-GPU configurations.
