I assume physically loading the tray isn't the issue, the issue is programming the stock on the UI. Correct?
Try disabling the prompts for loading paper by making it a dedicated tray, and then set the needed settings for it via Printer > Tools > Tray Management > Tray Settings
If that works and you don't often make changes, just stick with it, if it doesn't, setting it back to not dedicated may resolve the crashing.
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for posts that resolve your issues. Your feedback counts!Joe Arseneau