Getting tons of "missing sprite/patch lump" errors in ZB 3.2

[Kami-kun]

Already made a thread about this one: https://mb.srb2.org/threads/lump-errors-when-creating-new-map-in-zb.45112/

However, things to note:
- I have added srb2.pk3 and zones.pk3 to ZB's resource list
- This copy of SRB2 is 2.2.15 (upgraded from 2.2.14, in fact)
- I am running Windows 10
- Version of Zone Builder is 3.2.0.2700
- I don't wanna use UZB because the RetroPie version of SRB2 is stuck on 2.2.7 afaik