When plotting calexp mask and variance using Firefly, the WCS is not being inherited. The calexp image has the correct coordinates when you mouse over the images in Firefly, but the mask and the variance appear to be using a default ra and dec, where the bottom left corner is displayed as around ~23h58m00s and ~0d29m00s

And example notebook that shows the issue can be found at:

https://github.com/lsst-dm/ap_pipe-notebooks/blob/873176ea1d87870c1678037b13e7ff48bd4c56fb/notebooks/Firefly-Bug-Notebook.ipynb

(This is on the branch u/bsmart/Firefly-bugs of https://github.com/lsst-dm/ap_pipe-notebooks .)