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Participating Frequently
October 20, 2026
Open for Voting

Focus Stacking from Lightroom Classic performed in Photoshop Causes Photoshop to Crash.

I’m using the latest versions of Lightroom Classic (15.6) and Photoshop on Windows 11 Professional. When I transfer Canon RAW photos (CR3) from Lightroom to Photoshop for focus stacking (via “Open as Layers…”), Photoshop regularly freezes and becomes unresponsive. It can only be terminated via Task Manager. Only in rare cases does it work as usual. The problem also occurred in previous versions, but more sporadically. In my old version, which was still running on Windows 10 (until July), this problem never occurred.
It appears to be a scripting issue that will hopefully be resolved in LR16. In the long run, to avoid such problems, it would make sense to perform focus stacking directly in LR anyway. 

System:

Prozessor    Intel(R) Core(TM) Ultra 9 285K, 3700 MHz, 24 Kern(e), 24 logische(r) Prozessor(en)

BaseBoard-Produkt    ProArt Z890-CREATOR WIFI

Adapterbeschreibung    NVIDIA GeForce RTX 5070 Ti

Memory 64GB
 

    1 reply

    Participating Frequently
    October 21, 2026

    Can you please let us know how many focus staked shots are you typically sending over to PS, as this could be a memmory issue?

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