FITS Header entry STRSZ1x1

Hi,
Recently running a program using astropy to analyze FITS files.
astropy.io.fits returns the following:

Error reading FITS file M13_300sec_1x1_G_0024.fit:
Verification reported errors:
HDU 0:
Card 36:
Card keyword ‘STRSZ1x1’ is not upper case.
Note: astropy.io.fits uses zero-based indexing.

The key/value is:
STRSZ1x1= 6 / SGPro minimum star size filter

Shouldn’t all header keywords be in upper case?

Thanks!

Yes, I’ve addressed this and it will be out with the next beta/release.

Jared