1.11.6 JXL animation too slow

[A:C]

XnView: MP-1.11.6
Running under Windows 11 25H2 (others not tested)

GIF-Ani converted with cjxl v0.12.0 4128790 (latest) plays in XnView ca. half of its original speed (slow-mo).
Analyzing the .jxl with jxlinfo gives f.e. 3.3 seconds -> XnView needs ca. 7.5 seconds to loop. (original gif loop takes ca. 3.3 seconds)

[xnview]

Please post a sample file

[A:C]

Here is a to JXL converted GIF-File which IrfanView plays correctly (ca. 3.3 seconds loop-time).

The original can be found here https://giphy.com/gifs/happy-new-year-2 ... VimwBAtIRx

Thank you that you took notice.