Jetpacks changing type while using

[57331Fury]

So I made a fluxed electrum jetpack using the most recent build on curseforge 2.2.2.28, and after flying around for a bit, I got back to my base, and realised that it had downgraded to a leadstone jetpack, but still had the same amount of fuel in that it had previously, so the powerbar was stretching across my character on the inventory screen. All standard jetpacks I build seem to be doing this. However I then built a fluxed electrum armored jetpack hoping this would solve the problem, but after flying around for a bit I noticed that it had this time upgraded to a resonant ender jetpack.