I am currently using 0.1.6 of this mod for my pack Lite Island (1.3). It seems like the leaves spreading behavior are broken even when the spreading chance is set to a higher number in config. The leaves are just not spreading at all or takes a very long time to spread. Reverted back to 0.1.5 and everything seems fine.

It seems like you should be using rand.nextInt(100) instead of rand.nextFloat() in these places:

https://github.com/BloodWorkXGaming/ExNihiloCreatio/blob/f3778ee92441c8946c9f5e8bcd6a76f0afed5c04/src/main/java/exnihilocreatio/blocks/BlockInfestedLeaves.java#L69

https://github.com/BloodWorkXGaming/ExNihiloCreatio/blob/f3778ee92441c8946c9f5e8bcd6a76f0afed5c04/src/main/java/exnihilocreatio/blocks/BlockInfestingLeaves.java#L124

Ah okay.

ye, it kinda has some problems with reading the different versions of the config file, but besides that, ye, it is pretty broken anyways, will look into it.

Setting the config D:leavesSpreadChance=1 will allow infested leaves to spread its just slow
tested I:leavesSpreadPercent=25 and I:leavesSpreadPercent=60 did not make any difference
An setting I:leavesUpdateFrequency=80 didnt change anything
but changing I:leavesUpdateFrequency=80 to 20 stops the spread