also.. they tend to 'complain' when potted on into a larger pot...thats typical for all lillies.
so next year should be fine!
(i talk from experience....when my neighbour died- aged 100.... i asked her family if i could have the lillies she had outside her kitchen window. I potted them up in march - and they did not flower that year... but were beautiful the next year. then several years on i decided this spring to pot them on again...and only had 1 flower this month!)