Has importing mask files been changed? Or is this a bug?

When importing photos into a new project, I can’t use the same file naming system I’ve used in previous projects. My files are named like timestamps and have periods in them. When opening an older project, I’m still able to press tab to switch the 2D viewer between originals and masks, and it functions like normal.

However, new projects don’t recognize the masks with periods in the filenames. They show up as two separate images:

To get new photo+mask pairs recognized, I have to remote all periods before the .jpg.mask.png.

Is that a bug introduced in 1.5.1 or is that intentional? I’d hate to have to rename all my photos for new projects. It used to work fine in older versions of RC

Hello @PeachyPoofs
Thank you for reporting this. You’re right, this is a bug and now our developers are working on it.
The only solution for now is using the previous version or the mentioned name change.
We are sorry for your inconveniences.