Trasparent blocks with a semi-opaque texture (no matter what opacity it has) make invisible the particles.
Therefore, blocks as ice or colored stained glass that have traslucent textures make all particles invisible while you are still able to see other blocks ot entities through them.
I believe it is supposed to be fixed on 19w46a, MC-165540, but it is still happening.
It do not happen on 1.14.4 or lower.
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Avoma
This report appears to be a duplicate of MC-188529, which was later marked as "Won't Fix". This "issue" only occurs when using either the "Fast" or "Fancy" graphics options and can be fixed by using the "Fabulous" graphics settings. Please see the parent ticket for further information.
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Oh! Sorry then. I did search, but I didn't see neither that post or a duplicate or that option!
Thank you very much for your quick response.