Had some biolabs + beacons ghosts on top of others that were marked for deconstruction, used module inserter (https://mods.factorio.com/mod/ModuleInserterSimplified) over the area for prod 3s and got this crash - unsure if the crash is due to this mod or that one (or just edge case incompatibility).

The mod Newly constructed machines wait for their modules (1.1.16) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event newly-constructed-machines-wait-for-their-modules::on_tick (ID 0)
...onstructed-machines-wait-for-their-modules__/control.lua:168: expected entity.active to be true. {
type = "lab",
name = "biolab",
force = "player",
surface = "nauvis",
position = {
y = -257.5,
x = -267.5
},
active = false,
status = "marked_for_deconstruction",
custom_status = {
diode = 2,
label = {
"entity-status.waiting-for-modules"
}
},
last_user = "Hellpest"
}
stack traceback:
[C]: in function 'assert'
...onstructed-machines-wait-for-their-modules__/control.lua:168: in function <...onstructed-machines-wait-for-their-modules__/control.lua:137>

Have done a little more testing - specifically there's usually (not in all circumstances but can't figure out any pattern) a crash when requsting productivity modules (with the module inserter tool from that mod) into a machine marked for deconstruction that occupies the same tile as a ghost of any other machine. That mod seems to have a bug where it inserts modules into both the targetted machine and any machine that occupies the same tile as it, which may be then causing this crash secondarily - I've made another report over there (https://mods.factorio.com/mod/ModuleInserterSimplified/discussion/675874b5aa7d4687986321dc), though this crash doesn't occur in all instances of that bug.

hmm interesting