Never had an issue with mine. I have one in the back of my 40b, not ulvaceus but crispus, that's seen 4 different tanks over 10 years and though it will go dormant for a couple months (drops leaves and disappears) the roots stay strong and the leaves grow back.
If you get about 10 bulbs you can do a little ******* wabikusa ball by taking coco mat, putting a root tab in the middle (where the bottom of the ball will be) along with some inert planted substrate and put the bulbs in there, wrap them up with plastic mesh and bury the ball 2/3 into the substrate you should be able to get growth, regardless of the reliability of the bulb source.
If you can order one that has already been sprouted you can avoid the bulb viability issue, but I've never had an issue. How this sees you well. 😁