I seem to have found a bug? ——About image occlusion Template

I have made an image occlusion card.
There are {{c1::a}} {{c1::b}} {{c2::c}} in the card, totally 3 blocks.
As shown below:

Then I let a c2 and two c1 merge directly.
As shown below:

The coordinate data of the merged picture appears negative.
As shown below:

Then the picture will be misplaced and may not be displayed on the screen.

This mistake keeps appearing and can be reproduced.
If I split c1, c1 and c2 into c1, c2 and c3, and then merge them into c1, c1 and c1.
This mistake did not appear.

Ankimobile version is 2.0.96(20096.3).

I don’t know if this is a bug.
If this is a bug, can it be fixed?

Thank you for the report; I have logged this on Mask is in wrong position after grouping operation · Issue #2644 · ankitects/anki · GitHub

Thank you for your service to anki. :smiling_face_with_three_hearts: