Update: the second taped spool did let the filament release from the tape and the tape stayed on the cardboard center spool. I was ready with my cutters, just in case.
So, 50% error rate here.
Later, I finished an older roll that had no problem, but that was because the end of the filament was inserted into a hole and easily pulled out, Much better! I suspect that they changed suppliers.
My P1S/AMS combo flawlessly finished off one spool and switched over to another spool of the same color while I was sleeping last night (as it should). The spool that ran out had the new version of tape applied to the filament end, with only about 10 mm capturing the end, instead of the approx. 20mm on the offending spools. This filament was purchased Mar. 16, so maybe the older filament inventories have mostly been sold off (but I’m sure that there are some less-ordered popular types/colors still lurking to be bought). It’s remarkable that this thread is nearly 2-years-old.
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What about simple running “tail” under the rest of filament? Polish manufacturer Rosa3D does this with it’s refills (here mounted on Bambu spool on adapter) - absolutely zero issues with AMS and with just dryer (Sunlu S2):
Edit; Ok as always it might have issues with rewinding when little to nothing is on the spool but it’s edge case
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Well, that is arguably less secure than having e.g. a 45 degree end bent into the cardboard ring. Good idea though!
This continues to ruin prints for me to this day, 2 years after the first post in this thread. Remarkable how such a company can produce so good printers, yet have so little interest in fixing this.
Clearly my main source of print fails. Outrageous.
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One of my petg hf spools reached the end today and revealed this mini white tape holding the end on. I haven’t seen this method before. It covers about 6mm of the tape end and actually wraps around inside the cardboard. This spool was purchased in the last 30 days. It released perfectly.
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DO NOT use Bambu filament. It WILL jam and eventually damage your AMS unit. They are taping the filament to the spools and they refuse to stop.
This is a complete joke…
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There is already a long thread about this topic:
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If you check that thread link Dextera posted, there’s a link to a design someone created that will cut the filament in the AMS to keep from pulling tape into the feed mechanism.
That tape looks like the original/first tape method and was very susceptible to being ingested. Unfortunately the various revisions to it that Bambu has used can still pull tape off the cardboard spool. They may have a new version where the tape wraps the edge of the cardboard but I haven’t seen that yet personally.
It’s too bad Bambu did this. We don’t know which lots have which taping methods. Any spool could do this. With Bambu filament I always make sure to keep tabs on spools as they get low to clip the filament loose manually.
Yes, but that post is two years old, and despite Bambu’s claims of “taking steps to remedy the issue”, this problem still exists on every single spool two years later.
This is a complete joke and their filament is not safe to use.
But not the answers in there … I just told you, that there is already a thread. Nothing more. They know about that issue, they altered some of their tryings - but all in all they didn’t care.
Have you contacted support? I haven’t yet had the tape in AMS situation (caught in time or the filament was released from the tape without problems) but based on the thread regarding tape problem the support does respond to queries on that issue.
And in the spirit of 3d printing, someone came up with better solution untill the company solves the issue (that’s why “open” part of 3d printing is important):
Here’s Hexavalent’s problem solvers:
I just used up a spool with this sort of tape. It pulled free easily and auto-refill worked, switching to another roll automatically.
As a former business person, I know that a company selling it’s branded merchandise has the final responsibility to sell products that meet their customers’ needs. To say that it’s the third party manufacturer’s fault is a company cop out. Passing the buck only results in customer dissatisfaction, and a loss of sales in the long run.
And that obviously means nothing to bbl. When/if they bother to solve the filament problems, they will then start closing down their system, so that you can only use their filament. Be careful what you wish for…
I just had my first onprint spool change. And the tape peeled off from the cardboard and was stuck in the AMS. Once I pulled it out it the reversed the filament and once the sticker also was detached from the filament after this then it just pulled the whole end of the filament inside and continued printing.
I had to manually feed new reel while it was printing on the same slot and then it was happy and I’m not even sure how will the filament end be sensed and purged out… 10h wasted if it doesn’t work the end filament should be without the tape or some other solution to this 
Seems it handled it OK and the print finished like it should.