Never had this problem before. I'm trying to save files and I get this (with no file written):
Writing file:
/Users/Mahesh/data/ccdastro/hotbox/nonlinear/ngc7000/star_mask.xisf
<* cancel *>
Giving it a kick by changing the format to BMP and then back to XISF allows it to save.
PixInsight Core 1.8.8-5 Ripley (x64)
MacBook Pro (Retina, 15-inch, Late 2013)
Catalina 10.15.5 (19F101)
Writing file:
/Users/Mahesh/data/ccdastro/hotbox/nonlinear/ngc7000/star_mask.xisf
<* cancel *>
Giving it a kick by changing the format to BMP and then back to XISF allows it to save.
PixInsight Core 1.8.8-5 Ripley (x64)
MacBook Pro (Retina, 15-inch, Late 2013)
Catalina 10.15.5 (19F101)