Both made the same mistake (oops) - I only noticed as my light box is now on its side right next to the puder screen here, hope it didn't result in anyone getting BLB out of our info - not to mind tho, like you say its apparent they still work (and why not ;))
I may be way off but be sure your negatives are not TMax100 (100Tmax) its coating blocks uv light
I use mostly fp4, foma/arista and now trying out Adox - strange loyalty to the first films I bought or nowadays what is available in 25+ box packs
Never used Kodak ever except exclusively in cine stocks - but yes, I had heard of that issue.
No, I generally use TMY (TMax-400). The issue was definitely that I had the wrong kind of bulbs.