Orion crashes when cancelling a sampler program import with a large number of samples loaded. Win7, Orion 8.504. Seems there may be a critical number of samples you need to have loaded, in my case I have 57. Using a smaller number does not cause the problem.
01) Insert sampler
02) Select Program Editor
03) Select Add to insert some samples
04) Select Assign 1 key to each sample
05) Click OK
06) Press Cancel
07) Orion crashes