Cannot use predict slide for MIL model

[jziggles]

Description

The "predict_slide" function in slideflow studio does not work. I have been using the magnification value in the tile_um variable during tile extraction. The slides (TCGA library for ER status by IHC) appear to have different tile_um sizes ranging from 497 to 505 uM when they are loaded in slideflow. Is this variable nature the problem?

To Reproduce

Steps to reproduce the behavior:

1. Load project
2. Load MIL model
3. Load slide that has been run in MIL model w/ attention values
4. Click predict slide

Error message in slideflow studio
MIL model tile size (tile_px = 500, tile_um = 10x) does not match the currently loaded slide (tile_px = 500, tile_um=497)

Expected behavior

I want to be able to predict the slide and overlay attention values.

Environment:

• Slideflow Version (e.g., 1.0): 2.3.1
• OS (e.g., Ubuntu): Red Hat 8
• How you installed Slideflow (pip, source): pip
• Python version: 3.9