Unable to convert 1bpp png file

[ASRoden]

ImageMagick version

6.9.10-68

Operating system

Linux

Operating system, version and so on

CentOS Linux 7

Description

I am unable to use imagemagick to convert and existing 1 bit per pixel .png file.
/usr/bin/convert test.png out.bmp returns
Get a no images defined 'out.bmp' @ error/convert.c/ConvertImageCommand/3235

Steps to Reproduce

have a 1bpp test.png file
call /usr/bin/convert test.png out.bmp

Images

[urban-warrior]

Thanks for the problem report. We can reproduce it and will have a patch to fix it in the GIT main branch @ https://github.com/ImageMagick/ImageMagick later today. The patch will be available in the beta releases of ImageMagick @ https://imagemagick.org/archive/beta/ by sometime tomorrow.