Post 1.19, the chemicking training key item no longer shows as highlighted in green when performing a synthesis that requires it. I have tested it on several different shard recipes, as well as logged in and out of the game several times.

While the key item still resides in the 'Key Items' section of my purchased abilities, it does seem to be affecting the success rate of crafted items. I normally have no problems HQ'ing rank 1-21 shards and crystals from fish, this time around I actually found a lot more difficulty even crafting those levels.