I am not sure if this is more of a request than a bug, but for me this behavior feels like a bug....
The problem is as follows:
For all my photo's I use a uniform date-time naming convention, YYYY-MM-DD HH.MM.SS (generated by Lightroom upon export). So for example, the resulting filename is: 2020-04-19 16.12.07.jpg
If I edit this example file in Pixelmator Pro and export it again, Pixelmator suggests saving the file as 2020-04-19 16.12. So the name gets truncated, the last part of the name, the seconds, I have to enter manually again.
I think the suggested name should be the full original filename. Or is this a macOS limitation (too many ".")?
Thanks for any help on this.