Older .vpt table not seen by Popper
What it means
This older-format table works fine standalone, but stays invisible in your PinUP Popper wheel.
Why it happens
PinUP Popper matches tables to an emulator entry by file extension, and .vpt (the older VP9 format) isn't listed among the VPX emulator's recognized extensions.
How Pincab Toolbox detects it
One or more .vpt files exist directly in your Tables folder.
Check your own pincab
Pincab Toolbox is a free Windows scanner for Visual Pinball X and PinUP Popper. It finds and explains problems like this one. No account, no telemetry.
Download for freeCovered: Visual Pinball X (10.x) and PinUP Popper. Not covered: Future Pinball, Pinball FX, Visual Pinball 9 and the other frontends (PinballX, PinballY).