Before posting, please make sure that this hasn't already been reported by someone else.
Adding long id blocks (like "minecraft:polished_blackstone_pressure_plate") to x-ray block list not working.
Please make a list of steps to reproduce the problem (ideally from a fresh Wurst installation):
A budget workaround is to manually add blocks to .minecraft/wurst/settings.json, find whatever module you want to add it to, albeit xray, basefinder, autodrop or something similar
Right now the letter(including spaces) max count in wurst edit screens is 32, meanwhile the longest block would be 34 characters. 1.17 changes the max length to 41 with: waxed_lightly_weathered_cut_copper_stairs