[MC-151059] Pillagers lose crossbows after updating from 1.14 to 1.14.1

I think this may be a bug. I spawned a pillager in a map I'm making. I upgraded and backed up the map and now the pillager has no crossbow.

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Note: I summoned him as a silent, persistent pillager so he wouldn't despawn. I did summon him with his crossbow, however.

Cannot reproduce. What command did you use exactly to summon him?
What is the output of the command

/data get entity @e[type=pillager, sort=nearest, limit=1] HandItems

that you run near your pillager, in 1.14, then in 1.14.1-pre1?

I ran the command and all I got was [{}, {}]

The command I summoned him with was /summon pillager ~ ~1 ~ {PersistenceRequired:1,Silent:1}

*Thank you for your report!
However, this issue is Invalid.

You pillager didn't spawn with an crossbow because you didn't explicitly specify it in the custom NBT command you used. For this to work, add the NBT

HandItems: [{id: "minecraft:crossbow", Count: 1b}]

to your command.