Keyframe not working as expected

Yes that suggestion came up elsewhere. Tried that several times. Same result. 

Thanks. I just tried it in a new project and the experience is the same. The media is mp4 taken with a GH5. In a new project, I dragged a single clip over to the timeline, added a frame hold and expanded it, and on this clip, I added two keyframes similar to what's shown in the video... the first one responds to position changes, the second one does not. 

Let me know if you need anything else. 

OS Name Microsoft Windows 10 Pro
Version 10.0.19041 Build 19041
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name LAPTOP-K4HV0B4D
System Manufacturer HP
System Model HP Pavilion Laptop 15-cc5xx
System Type x64-based PC
System SKU 1KU36UA#ABA
Processor Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz, 2904 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date Insyde F.10, 7/28/2017
SMBIOS Version 3.0
Embedded Controller Version 46.21
BIOS Mode UEFI
BaseBoard Manufacturer HP
BaseBoard Product 8367
BaseBoard Version 46.21
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Elevation Required to View
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.19041.488"
User Name LAPTOP-K4HV0B4D\bvy
Time Zone Eastern Standard Time
Installed Physical Memory (RAM) 12.0 GB
Total Physical Memory 11.9 GB
Available Physical Memory 2.89 GB
Total Virtual Memory 21.7 GB
Available Virtual Memory 2.77 GB
Page File Space 9.82 GB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Not enabled
Device Encryption Support Elevation Required to View
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware No
Hyper-V - Data Execution Protection Yes