spot removal error when converting to DNG

[tmaly.cz]

Hi, when I convert a photo from RAW to DNG format, spot removal will create these weird artifacts for me. Does anyone have experience with this, please?

[richardplondon · Accepted solution]

It's apparently a known problem: 

https://community.adobe.com/t5/lightroom-classic/spot-removals-become-pink-squares-once-raw-converte... 

One workaround may be to simply not convert to DNG, which AFAICT helps with:

• this particular problem
• the broader efficiency of changing external XMP metadata being isolated to small sidecar files only

[tmaly.cz]

I'm doing this for file shrinking and archiving. But this is a big mistake.