I could not reproduce it.

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(guix/linux-gnu)[sharlatan@guxtil ~]$: guix build kitty
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
3.1 MB will be downloaded:
  /gnu/store/7h55d9yghc72q5lc43lrly9rvl59x39v-kitty-0.21.2
substituting /gnu/store/7h55d9yghc72q5lc43lrly9rvl59x39v-kitty-0.21.2...
downloading from https://bordeaux.guix.gnu.org/nar/lzip/7h55d9yghc72q5lc43lrly9rvl59x39v-kitty-0.21.2 ...
 kitty-0.21.2  2.9MiB                                                                                                                                                                                                                   5.3MiB/s 00:01 ▕██████████████████▏ 100.0%

The following graft will be made:
   /gnu/store/4izr3alrcnacspq4i55mvgc9axbmfbfd-kitty-0.21.2.drv
applying 20 grafts for kitty-0.21.2 ...
grafting '/gnu/store/7h55d9yghc72q5lc43lrly9rvl59x39v-kitty-0.21.2' -> '/gnu/store/9n4nnswkk844m1mhpzh6s3ndqwx4zr88-kitty-0.21.2'...
successfully built /gnu/store/4izr3alrcnacspq4i55mvgc9axbmfbfd-kitty-0.21.2.drv
/gnu/store/9n4nnswkk844m1mhpzh6s3ndqwx4zr88-kitty-0.21.2
(guix/linux-gnu)[sharlatan@guxtil ~]$: guix describe
Generation 24   May 21 2024 16:59:57    (current)
  guix 3fd9f25
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 3fd9f25bb385723c70d0bd6af21aeaf784d08049
(guix/linux-gnu)[sharlatan@guxtil ~]$: guix build kitty --check
The following graft will be made:
   /gnu/store/4izr3alrcnacspq4i55mvgc9axbmfbfd-kitty-0.21.2.drv
applying 20 grafts for kitty-0.21.2 ...
grafting '/gnu/store/7h55d9yghc72q5lc43lrly9rvl59x39v-kitty-0.21.2' -> '/gnu/store/9n4nnswkk844m1mhpzh6s3ndqwx4zr88-kitty-0.21.2'...
successfully built /gnu/store/4izr3alrcnacspq4i55mvgc9axbmfbfd-kitty-0.21.2.drv
successfully built /gnu/store/4izr3alrcnacspq4i55mvgc9axbmfbfd-kitty-0.21.2.drv
/gnu/store/9n4nnswkk844m1mhpzh6s3ndqwx4zr88-kitty-0.21.2
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